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Finding the Fourth Proportional to 232.74, 321.03 and 167.28

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Solution

The fourth proportional to 232.74, 321.03 and 167.28 is: 230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.74 : 321.03 = 167.28 : x
  2. Step 2: Convert to fraction form
    232.74/321.03 = 167.28/x
  3. Step 3: Cross multiply
    232.74x = 321.03 × 167.28
  4. Step 4: Simplify right side
    232.74x = 53,701.90
  5. Step 5: Solve for x
    x = 53,701.90/232.74
  6. Step 6: Final answer
    x = 230.74

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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.