Finding the Fourth Proportional to 391,757.50, 587,619.83 and 125,512.12
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Solution
The fourth proportional to 391,757.50, 587,619.83 and 125,512.12 is: 188,262.92
Step by Step Solution
- Step 1: Write the proportion equation
391,757.50 : 587,619.83 = 125,512.12 : x - Step 2: Convert to fraction form
391,757.50/587,619.83 = 125,512.12/x - Step 3: Cross multiply
391,757.50x = 587,619.83 × 125,512.12 - Step 4: Simplify right side
391,757.50x = 73,753,411,665.64 - Step 5: Solve for x
x = 73,753,411,665.64/391,757.50 - Step 6: Final answer
x = 188,262.92
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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.