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Finding the Fourth Proportional to 259,520.92, 389,160.42 and 134,828.44

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Solution

The fourth proportional to 259,520.92, 389,160.42 and 134,828.44 is: 202,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,520.92 : 389,160.42 = 134,828.44 : x
  2. Step 2: Convert to fraction form
    259,520.92/389,160.42 = 134,828.44/x
  3. Step 3: Cross multiply
    259,520.92x = 389,160.42 × 134,828.44
  4. Step 4: Simplify right side
    259,520.92x = 52,469,892,338.34
  5. Step 5: Solve for x
    x = 52,469,892,338.34/259,520.92
  6. Step 6: Final answer
    x = 202,179.82

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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.