Finding the Fourth Proportional to 315,465.23, 472,804.05 and 157,738.79
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Solution
The fourth proportional to 315,465.23, 472,804.05 and 157,738.79 is: 236,411.28
Step by Step Solution
- Step 1: Write the proportion equation
315,465.23 : 472,804.05 = 157,738.79 : x - Step 2: Convert to fraction form
315,465.23/472,804.05 = 157,738.79/x - Step 3: Cross multiply
315,465.23x = 472,804.05 × 157,738.79 - Step 4: Simplify right side
315,465.23x = 74,579,538,754.10 - Step 5: Solve for x
x = 74,579,538,754.10/315,465.23 - Step 6: Final answer
x = 236,411.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.