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Finding the Fourth Proportional to 437,691.06, 656,478.18 and 122,179.86

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Solution

The fourth proportional to 437,691.06, 656,478.18 and 122,179.86 is: 183,253.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,691.06 : 656,478.18 = 122,179.86 : x
  2. Step 2: Convert to fraction form
    437,691.06/656,478.18 = 122,179.86/x
  3. Step 3: Cross multiply
    437,691.06x = 656,478.18 × 122,179.86
  4. Step 4: Simplify right side
    437,691.06x = 80,208,412,125.45
  5. Step 5: Solve for x
    x = 80,208,412,125.45/437,691.06
  6. Step 6: Final answer
    x = 183,253.49

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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.