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Finding the Fourth Proportional to 232.82, 321.29 and 126.48

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Solution

The fourth proportional to 232.82, 321.29 and 126.48 is: 174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.82 : 321.29 = 126.48 : x
  2. Step 2: Convert to fraction form
    232.82/321.29 = 126.48/x
  3. Step 3: Cross multiply
    232.82x = 321.29 × 126.48
  4. Step 4: Simplify right side
    232.82x = 40,636.53
  5. Step 5: Solve for x
    x = 40,636.53/232.82
  6. Step 6: Final answer
    x = 174.54

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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.