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Finding the Fourth Proportional to 239,839.01, 330,978.25 and 132,409.22

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Solution

The fourth proportional to 239,839.01, 330,978.25 and 132,409.22 is: 182,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,839.01 : 330,978.25 = 132,409.22 : x
  2. Step 2: Convert to fraction form
    239,839.01/330,978.25 = 132,409.22/x
  3. Step 3: Cross multiply
    239,839.01x = 330,978.25 × 132,409.22
  4. Step 4: Simplify right side
    239,839.01x = 43,824,571,919.47
  5. Step 5: Solve for x
    x = 43,824,571,919.47/239,839.01
  6. Step 6: Final answer
    x = 182,724.95

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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.