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Finding the Fourth Proportional to 232.47, 321.10 and 230.65

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Solution

The fourth proportional to 232.47, 321.10 and 230.65 is: 318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.47 : 321.10 = 230.65 : x
  2. Step 2: Convert to fraction form
    232.47/321.10 = 230.65/x
  3. Step 3: Cross multiply
    232.47x = 321.10 × 230.65
  4. Step 4: Simplify right side
    232.47x = 74,060.34
  5. Step 5: Solve for x
    x = 74,060.34/232.47
  6. Step 6: Final answer
    x = 318.58

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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.