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Finding the Fourth Proportional to 297,188.57, 445,781.29 and 72,550.19

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Solution

The fourth proportional to 297,188.57, 445,781.29 and 72,550.19 is: 108,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,188.57 : 445,781.29 = 72,550.19 : x
  2. Step 2: Convert to fraction form
    297,188.57/445,781.29 = 72,550.19/x
  3. Step 3: Cross multiply
    297,188.57x = 445,781.29 × 72,550.19
  4. Step 4: Simplify right side
    297,188.57x = 32,341,517,287.95
  5. Step 5: Solve for x
    x = 32,341,517,287.95/297,188.57
  6. Step 6: Final answer
    x = 108,824.90

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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.