Proportion shows the equality between two ratios. If two ratios are in proportion then they must be equal.
How to solve proportion problems?
If the cost of 8 strawberries is Rs. 64 then what will be the cost of 25 strawberries.
Using Unitary Method
Solution using proportion
Let the cost of 25 strawberries = Rs. x
Hence the cost of 25 strawberries is Rs. 200.