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Finding the Fourth Proportional to 234,720.88, 323,905.80 and 127,288.96

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Solution

The fourth proportional to 234,720.88, 323,905.80 and 127,288.96 is: 175,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,720.88 : 323,905.80 = 127,288.96 : x
  2. Step 2: Convert to fraction form
    234,720.88/323,905.80 = 127,288.96/x
  3. Step 3: Cross multiply
    234,720.88x = 323,905.80 × 127,288.96
  4. Step 4: Simplify right side
    234,720.88x = 41,229,632,419.97
  5. Step 5: Solve for x
    x = 41,229,632,419.97/234,720.88
  6. Step 6: Final answer
    x = 175,653.88

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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.