Finding the Fourth Proportional to 391,253.68, 587,098.48 and 211,335.44
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Solution
The fourth proportional to 391,253.68, 587,098.48 and 211,335.44 is: 317,120.89
Step by Step Solution
- Step 1: Write the proportion equation
391,253.68 : 587,098.48 = 211,335.44 : x - Step 2: Convert to fraction form
391,253.68/587,098.48 = 211,335.44/x - Step 3: Cross multiply
391,253.68x = 587,098.48 × 211,335.44 - Step 4: Simplify right side
391,253.68x = 124,074,715,594.13 - Step 5: Solve for x
x = 124,074,715,594.13/391,253.68 - Step 6: Final answer
x = 317,120.89
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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.