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Finding the Fourth Proportional to 425,357.52, 638,330.96 and 169,163.83

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Solution

The fourth proportional to 425,357.52, 638,330.96 and 169,163.83 is: 253,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,357.52 : 638,330.96 = 169,163.83 : x
  2. Step 2: Convert to fraction form
    425,357.52/638,330.96 = 169,163.83/x
  3. Step 3: Cross multiply
    425,357.52x = 638,330.96 × 169,163.83
  4. Step 4: Simplify right side
    425,357.52x = 107,982,510,270.45
  5. Step 5: Solve for x
    x = 107,982,510,270.45/425,357.52
  6. Step 6: Final answer
    x = 253,862.94

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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.