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Finding the Fourth Proportional to 239,149.44, 330,041.20 and 131,719.43

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Solution

The fourth proportional to 239,149.44, 330,041.20 and 131,719.43 is: 181,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.44 : 330,041.20 = 131,719.43 : x
  2. Step 2: Convert to fraction form
    239,149.44/330,041.20 = 131,719.43/x
  3. Step 3: Cross multiply
    239,149.44x = 330,041.20 × 131,719.43
  4. Step 4: Simplify right side
    239,149.44x = 43,472,838,740.52
  5. Step 5: Solve for x
    x = 43,472,838,740.52/239,149.44
  6. Step 6: Final answer
    x = 181,781.06

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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.