Finding the Fourth Proportional to 252,937.12, 349,042.08 and 139,757.44
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Solution
The fourth proportional to 252,937.12, 349,042.08 and 139,757.44 is: 192,859.11
Step by Step Solution
- Step 1: Write the proportion equation
252,937.12 : 349,042.08 = 139,757.44 : x - Step 2: Convert to fraction form
252,937.12/349,042.08 = 139,757.44/x - Step 3: Cross multiply
252,937.12x = 349,042.08 × 139,757.44 - Step 4: Simplify right side
252,937.12x = 48,781,227,553.08 - Step 5: Solve for x
x = 48,781,227,553.08/252,937.12 - Step 6: Final answer
x = 192,859.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.