在数学中ratio和proportion只有两个区别，分别是意思不同和强调内容不同：
一、意思不同
1、proportion构成比；比例通常以100％为比例基数，用来说明各构成部分在总体中所占的比重或分布，比如什么东西在什么中占的比例很大 。
2、ratio意思是比，比率。
二、强调不同
1、proportion强调一物与他物在数量、大小等方面的关系。
2、ratio强调是整体与部分、部分与部分的比率。两个相关指标之比，说明两指标间的比例关系。
扩展资料：
举例说明
1、表示两个比值相等的式子叫做比例，如3:4=9:12、7:9=21:27
比例有四个项，分别是两个内项和两个外项；在7:9=21:27中，其中7与27叫做比例的外项，9与21叫做比例的内项。
2、比如：教师和学生的～已经达到要求。
3、比如：在所销商品中，国货的～比较大。
4、比例写成分数的形式后，那么，左边的分母和右边的分子是内项；左边的分子和右边的分母是外项。
5、比例的基本性质：在一个比例中，两个外项的积等于两个内项的积。
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第1个回答 推荐于2017-05-01
帮你google了下，下面是英文的注解：
A ratio is a comparison of two numbers. We generally separate the two numbers in the ratio with a colon (:). Suppose we want to write the ratio of 8 and 12.
We can write this as 8:12 or as a fraction 8/12, and we say the ratio is eight to twelve.
Example:
Jeannine has a bag with 3 videocassettes, 4 marbles, 7 books, and 1 orange.
Proportion:
A proportion is an equation with a ratio on each side. It is a statement that two ratios are equal.
3/4 = 6/8 is an example of a proportion.
When one of the four numbers in a proportion is unknown, cross products may be used to find the unknown number. This is called solving the proportion. Question marks or letters are frequently used in place of the unknown number.
Example:
Solve for n: 1/2 = n/4.
Using cross products we see that 2 × n = 1 × 4 =4, so 2 × n = 4. Dividing both sides by 2, n = 4 ÷ 2 so that n = 2.
意思大概为，ratio是指两个数的比值，并且有冒号或以分式的形式约束。比如8：12或8/12，这是比率，即ratio。
而proportion是指一个等式，并且在等号的两边有相同比例的述。如8/12=2/3。
祝学习进步~本回答被网友采纳
A ratio is a comparison of two numbers. We generally separate the two numbers in the ratio with a colon (:). Suppose we want to write the ratio of 8 and 12.
We can write this as 8:12 or as a fraction 8/12, and we say the ratio is eight to twelve.
Example:
Jeannine has a bag with 3 videocassettes, 4 marbles, 7 books, and 1 orange.
Proportion:
A proportion is an equation with a ratio on each side. It is a statement that two ratios are equal.
3/4 = 6/8 is an example of a proportion.
When one of the four numbers in a proportion is unknown, cross products may be used to find the unknown number. This is called solving the proportion. Question marks or letters are frequently used in place of the unknown number.
Example:
Solve for n: 1/2 = n/4.
Using cross products we see that 2 × n = 1 × 4 =4, so 2 × n = 4. Dividing both sides by 2, n = 4 ÷ 2 so that n = 2.
意思大概为，ratio是指两个数的比值，并且有冒号或以分式的形式约束。比如8：12或8/12，这是比率，即ratio。
而proportion是指一个等式，并且在等号的两边有相同比例的述。如8/12=2/3。
祝学习进步~本回答被网友采纳
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