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Finding the Fourth Proportional to 239,132.27, 329,978.12 and 147,236.96

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Solution

The fourth proportional to 239,132.27, 329,978.12 and 147,236.96 is: 203,171.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,132.27 : 329,978.12 = 147,236.96 : x
  2. Step 2: Convert to fraction form
    239,132.27/329,978.12 = 147,236.96/x
  3. Step 3: Cross multiply
    239,132.27x = 329,978.12 × 147,236.96
  4. Step 4: Simplify right side
    239,132.27x = 48,584,975,344.08
  5. Step 5: Solve for x
    x = 48,584,975,344.08/239,132.27
  6. Step 6: Final answer
    x = 203,171.97

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1.5x scale

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.