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Finding the Fourth Proportional to 258,060.60, 386,940.24 and 100,104.48

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Solution

The fourth proportional to 258,060.60, 386,940.24 and 100,104.48 is: 150,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,060.60 : 386,940.24 = 100,104.48 : x
  2. Step 2: Convert to fraction form
    258,060.60/386,940.24 = 100,104.48/x
  3. Step 3: Cross multiply
    258,060.60x = 386,940.24 × 100,104.48
  4. Step 4: Simplify right side
    258,060.60x = 38,734,451,516.28
  5. Step 5: Solve for x
    x = 38,734,451,516.28/258,060.60
  6. Step 6: Final answer
    x = 150,098.28

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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.