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Finding the Fourth Proportional to 239,608.80, 330,659.42 and 132,190.65

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Solution

The fourth proportional to 239,608.80, 330,659.42 and 132,190.65 is: 182,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,608.80 : 330,659.42 = 132,190.65 : x
  2. Step 2: Convert to fraction form
    239,608.80/330,659.42 = 132,190.65/x
  3. Step 3: Cross multiply
    239,608.80x = 330,659.42 × 132,190.65
  4. Step 4: Simplify right side
    239,608.80x = 43,710,082,997.47
  5. Step 5: Solve for x
    x = 43,710,082,997.47/239,608.80
  6. Step 6: Final answer
    x = 182,422.69

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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.