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Finding the Fourth Proportional to 279,694.52, 386,006.33 and 170,792.86

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Solution

The fourth proportional to 279,694.52, 386,006.33 and 170,792.86 is: 235,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,694.52 : 386,006.33 = 170,792.86 : x
  2. Step 2: Convert to fraction form
    279,694.52/386,006.33 = 170,792.86/x
  3. Step 3: Cross multiply
    279,694.52x = 386,006.33 × 170,792.86
  4. Step 4: Simplify right side
    279,694.52x = 65,927,125,078.80
  5. Step 5: Solve for x
    x = 65,927,125,078.80/279,694.52
  6. Step 6: Final answer
    x = 235,711.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.