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Finding the Fourth Proportional to 278,194.69, 417,287.45 and 88,652.44

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Solution

The fourth proportional to 278,194.69, 417,287.45 and 88,652.44 is: 132,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,194.69 : 417,287.45 = 88,652.44 : x
  2. Step 2: Convert to fraction form
    278,194.69/417,287.45 = 88,652.44/x
  3. Step 3: Cross multiply
    278,194.69x = 417,287.45 × 88,652.44
  4. Step 4: Simplify right side
    278,194.69x = 36,993,550,180.62
  5. Step 5: Solve for x
    x = 36,993,550,180.62/278,194.69
  6. Step 6: Final answer
    x = 132,977.20

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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.