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Finding the Fourth Proportional to 239,179.64, 330,039.56 and 135,806.83

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Solution

The fourth proportional to 239,179.64, 330,039.56 and 135,806.83 is: 187,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,179.64 : 330,039.56 = 135,806.83 : x
  2. Step 2: Convert to fraction form
    239,179.64/330,039.56 = 135,806.83/x
  3. Step 3: Cross multiply
    239,179.64x = 330,039.56 × 135,806.83
  4. Step 4: Simplify right side
    239,179.64x = 44,821,625,932.61
  5. Step 5: Solve for x
    x = 44,821,625,932.61/239,179.64
  6. Step 6: Final answer
    x = 187,397.33

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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.