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Finding the Fourth Proportional to 426,141.96, 639,046.82 and 159,757.13

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Solution

The fourth proportional to 426,141.96, 639,046.82 and 159,757.13 is: 239,573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,141.96 : 639,046.82 = 159,757.13 : x
  2. Step 2: Convert to fraction form
    426,141.96/639,046.82 = 159,757.13/x
  3. Step 3: Cross multiply
    426,141.96x = 639,046.82 × 159,757.13
  4. Step 4: Simplify right side
    426,141.96x = 102,092,283,102.99
  5. Step 5: Solve for x
    x = 102,092,283,102.99/426,141.96
  6. Step 6: Final answer
    x = 239,573.41

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1.5x scale

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.