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Finding the Fourth Proportional to 239,789.38, 330,909.38 and 132,359.43

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Solution

The fourth proportional to 239,789.38, 330,909.38 and 132,359.43 is: 182,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,789.38 : 330,909.38 = 132,359.43 : x
  2. Step 2: Convert to fraction form
    239,789.38/330,909.38 = 132,359.43/x
  3. Step 3: Cross multiply
    239,789.38x = 330,909.38 × 132,359.43
  4. Step 4: Simplify right side
    239,789.38x = 43,798,977,621.65
  5. Step 5: Solve for x
    x = 43,798,977,621.65/239,789.38
  6. Step 6: Final answer
    x = 182,656.04

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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.