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Finding the Fourth Proportional to 425,596.52, 638,494.14 and 145,114.04

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Solution

The fourth proportional to 425,596.52, 638,494.14 and 145,114.04 is: 217,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,596.52 : 638,494.14 = 145,114.04 : x
  2. Step 2: Convert to fraction form
    425,596.52/638,494.14 = 145,114.04/x
  3. Step 3: Cross multiply
    425,596.52x = 638,494.14 × 145,114.04
  4. Step 4: Simplify right side
    425,596.52x = 92,654,464,171.73
  5. Step 5: Solve for x
    x = 92,654,464,171.73/425,596.52
  6. Step 6: Final answer
    x = 217,704.94

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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.