Finding the Fourth Proportional to 391,772.29, 587,658.57 and 107,465.80
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Solution
The fourth proportional to 391,772.29, 587,658.57 and 107,465.80 is: 161,198.74
Step by Step Solution
- Step 1: Write the proportion equation
391,772.29 : 587,658.57 = 107,465.80 : x - Step 2: Convert to fraction form
391,772.29/587,658.57 = 107,465.80/x - Step 3: Cross multiply
391,772.29x = 587,658.57 × 107,465.80 - Step 4: Simplify right side
391,772.29x = 63,153,198,351.91 - Step 5: Solve for x
x = 63,153,198,351.91/391,772.29 - Step 6: Final answer
x = 161,198.74
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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.