Finding the Fourth Proportional to 315,034.80, 472,552.20 and 115,361.70
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Solution
The fourth proportional to 315,034.80, 472,552.20 and 115,361.70 is: 173,042.55
Step by Step Solution
- Step 1: Write the proportion equation
315,034.80 : 472,552.20 = 115,361.70 : x - Step 2: Convert to fraction form
315,034.80/472,552.20 = 115,361.70/x - Step 3: Cross multiply
315,034.80x = 472,552.20 × 115,361.70 - Step 4: Simplify right side
315,034.80x = 54,514,425,130.74 - Step 5: Solve for x
x = 54,514,425,130.74/315,034.80 - Step 6: Final answer
x = 173,042.55
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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.