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Finding the Fourth Proportional to 437,470.20, 656,205.30 and 238,404.60

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Solution

The fourth proportional to 437,470.20, 656,205.30 and 238,404.60 is: 357,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,470.20 : 656,205.30 = 238,404.60 : x
  2. Step 2: Convert to fraction form
    437,470.20/656,205.30 = 238,404.60/x
  3. Step 3: Cross multiply
    437,470.20x = 656,205.30 × 238,404.60
  4. Step 4: Simplify right side
    437,470.20x = 156,442,362,064.38
  5. Step 5: Solve for x
    x = 156,442,362,064.38/437,470.20
  6. Step 6: Final answer
    x = 357,606.90

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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.