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Finding the Fourth Proportional to 437,550.92, 656,340.42 and 138,034.28

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Solution

The fourth proportional to 437,550.92, 656,340.42 and 138,034.28 is: 207,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,550.92 : 656,340.42 = 138,034.28 : x
  2. Step 2: Convert to fraction form
    437,550.92/656,340.42 = 138,034.28/x
  3. Step 3: Cross multiply
    437,550.92x = 656,340.42 × 138,034.28
  4. Step 4: Simplify right side
    437,550.92x = 90,597,477,309.60
  5. Step 5: Solve for x
    x = 90,597,477,309.60/437,550.92
  6. Step 6: Final answer
    x = 207,055.85

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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.