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Finding the Fourth Proportional to 438,960.52, 658,138.24 and 172,751.59

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Solution

The fourth proportional to 438,960.52, 658,138.24 and 172,751.59 is: 259,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,960.52 : 658,138.24 = 172,751.59 : x
  2. Step 2: Convert to fraction form
    438,960.52/658,138.24 = 172,751.59/x
  3. Step 3: Cross multiply
    438,960.52x = 658,138.24 × 172,751.59
  4. Step 4: Simplify right side
    438,960.52x = 113,694,424,250.52
  5. Step 5: Solve for x
    x = 113,694,424,250.52/438,960.52
  6. Step 6: Final answer
    x = 259,008.32

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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.