Alright, let's solve this step by step.
The expression we want to evaluate is 243^(1/5).
This is the same as taking the 5th root of 243. Now, we need to understand what the 5th root of a number is:
A 5th root of any number x is a value that, when multiplied by itself 4 more times (so, 5 times in total), gives us the original number, x.
Looking at the problem, we know base (243), and we need to find which number will equal 243 when it is multiplied by itself 5 times.
Knowing that 3^5 equals 243, we can conclude that 3 is the 5th root of 243. Thus, 243^(1/5) = 3.
So, the solution to the expression 243^(1/5) is 3.0.