Explanation:
A ratio is a comparison of two quantities, expressed as a fraction or with a colon. For example, the ratio of boys to girls in a classroom might be 2:3 or 2/3. A ratio does not require any specific relationship between the two quantities being compared.
A proportion, on the other hand, is an equation that states that two ratios are equal. It is a statement that two ratios have the same value. For example, if the ratio of boys to girls in a classroom is 2:3 and the total number of students is 50, we can set up a proportion to find out how many boys there are:
2/5 = x/50
In this case, x represents the number of boys. Solving the proportion yields x = 20, so there are 20 boys in the classroom.
In summary, while a ratio is simply a comparison of two quantities, a proportion is an equation that states that two ratios are equal.