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Finding the Fourth Proportional to 437,375.20, 656,062.80 and 156,791.20

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Solution

The fourth proportional to 437,375.20, 656,062.80 and 156,791.20 is: 235,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,375.20 : 656,062.80 = 156,791.20 : x
  2. Step 2: Convert to fraction form
    437,375.20/656,062.80 = 156,791.20/x
  3. Step 3: Cross multiply
    437,375.20x = 656,062.80 × 156,791.20
  4. Step 4: Simplify right side
    437,375.20x = 102,864,873,687.36
  5. Step 5: Solve for x
    x = 102,864,873,687.36/437,375.20
  6. Step 6: Final answer
    x = 235,186.80

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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.