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Finding the Fourth Proportional to 232.73, 321.17 and 127.82

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Solution

The fourth proportional to 232.73, 321.17 and 127.82 is: 176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.73 : 321.17 = 127.82 : x
  2. Step 2: Convert to fraction form
    232.73/321.17 = 127.82/x
  3. Step 3: Cross multiply
    232.73x = 321.17 × 127.82
  4. Step 4: Simplify right side
    232.73x = 41,051.47
  5. Step 5: Solve for x
    x = 41,051.47/232.73
  6. Step 6: Final answer
    x = 176.39

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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.