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Finding the Fourth Proportional to 234,717.76, 323,910.48 and 127,288

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Solution

The fourth proportional to 234,717.76, 323,910.48 and 127,288 is: 175,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,717.76 : 323,910.48 = 127,288 : x
  2. Step 2: Convert to fraction form
    234,717.76/323,910.48 = 127,288/x
  3. Step 3: Cross multiply
    234,717.76x = 323,910.48 × 127,288
  4. Step 4: Simplify right side
    234,717.76x = 41,229,917,178.24
  5. Step 5: Solve for x
    x = 41,229,917,178.24/234,717.76
  6. Step 6: Final answer
    x = 175,657.42

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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.