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Finding the Fourth Proportional to 239,820.45, 330,943.53 and 132,388.17

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Solution

The fourth proportional to 239,820.45, 330,943.53 and 132,388.17 is: 182,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,820.45 : 330,943.53 = 132,388.17 : x
  2. Step 2: Convert to fraction form
    239,820.45/330,943.53 = 132,388.17/x
  3. Step 3: Cross multiply
    239,820.45x = 330,943.53 × 132,388.17
  4. Step 4: Simplify right side
    239,820.45x = 43,813,008,310.04
  5. Step 5: Solve for x
    x = 43,813,008,310.04/239,820.45
  6. Step 6: Final answer
    x = 182,690.88

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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.