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Finding the Fourth Proportional to 278,149.88, 417,086.62 and 88,585.52

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Solution

The fourth proportional to 278,149.88, 417,086.62 and 88,585.52 is: 132,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,149.88 : 417,086.62 = 88,585.52 : x
  2. Step 2: Convert to fraction form
    278,149.88/417,086.62 = 88,585.52/x
  3. Step 3: Cross multiply
    278,149.88x = 417,086.62 × 88,585.52
  4. Step 4: Simplify right side
    278,149.88x = 36,947,832,810.85
  5. Step 5: Solve for x
    x = 36,947,832,810.85/278,149.88
  6. Step 6: Final answer
    x = 132,834.26

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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.