217.89 is what percent of 253 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 253 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 253, so we can write it down as 100%=253.
4. We know, that x% equals 217.89 of the output value, so we can write it down as x%=217.89.
5. Now we have two simple equations:
1) 100%=253
2) x%=217.89
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=253/217.89
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 217.89 is what percent of 253

100%/x%=253/217.89
(100/x)*x=(253/217.89)*x       - we multiply both sides of the equation by x
100=1.1611363532057*x       - we divide both sides of the equation by (1.1611363532057) to get x
100/1.1611363532057=x
86.122529644269=x
x=86.122529644269

now we have:
217.89 is 86.122529644269% of 253