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Finding the Fourth Proportional to 488,565.20, 732,847.80 and 172,981.10

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Solution

The fourth proportional to 488,565.20, 732,847.80 and 172,981.10 is: 259,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,565.20 : 732,847.80 = 172,981.10 : x
  2. Step 2: Convert to fraction form
    488,565.20/732,847.80 = 172,981.10/x
  3. Step 3: Cross multiply
    488,565.20x = 732,847.80 × 172,981.10
  4. Step 4: Simplify right side
    488,565.20x = 126,768,818,576.58
  5. Step 5: Solve for x
    x = 126,768,818,576.58/488,565.20
  6. Step 6: Final answer
    x = 259,471.65

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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.