281.5 is what percent of 287.5 - 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 287.5 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 287.5, so we can write it down as 100%=287.5.
4. We know, that x% equals 281.5 of the output value, so we can write it down as x%=281.5.
5. Now we have two simple equations:
1) 100%=287.5
2) x%=281.5
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%=287.5/281.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 281.5 is what percent of 287.5

100%/x%=287.5/281.5
(100/x)*x=(287.5/281.5)*x       - we multiply both sides of the equation by x
100=1.0213143872114*x       - we divide both sides of the equation by (1.0213143872114) to get x
100/1.0213143872114=x
97.913043478261=x
x=97.913043478261

now we have:
281.5 is 97.913043478261% of 287.5