Home / 442,861.13-664,397.15-143,341.76

Finding the Fourth Proportional to 442,861.13, 664,397.15 and 143,341.76

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Solution

The fourth proportional to 442,861.13, 664,397.15 and 143,341.76 is: 215,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,861.13 : 664,397.15 = 143,341.76 : x
  2. Step 2: Convert to fraction form
    442,861.13/664,397.15 = 143,341.76/x
  3. Step 3: Cross multiply
    442,861.13x = 664,397.15 × 143,341.76
  4. Step 4: Simplify right side
    442,861.13x = 95,235,856,819.98
  5. Step 5: Solve for x
    x = 95,235,856,819.98/442,861.13
  6. Step 6: Final answer
    x = 215,046.77

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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.