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Finding the Fourth Proportional to 426,177.96, 639,099.84 and 159,793.26

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Solution

The fourth proportional to 426,177.96, 639,099.84 and 159,793.26 is: 239,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,177.96 : 639,099.84 = 159,793.26 : x
  2. Step 2: Convert to fraction form
    426,177.96/639,099.84 = 159,793.26/x
  3. Step 3: Cross multiply
    426,177.96x = 639,099.84 × 159,793.26
  4. Step 4: Simplify right side
    426,177.96x = 102,123,846,899.08
  5. Step 5: Solve for x
    x = 102,123,846,899.08/426,177.96
  6. Step 6: Final answer
    x = 239,627.24

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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.