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Finding the Fourth Proportional to 234.89, 324.11 and 151.96

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Solution

The fourth proportional to 234.89, 324.11 and 151.96 is: 209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.89 : 324.11 = 151.96 : x
  2. Step 2: Convert to fraction form
    234.89/324.11 = 151.96/x
  3. Step 3: Cross multiply
    234.89x = 324.11 × 151.96
  4. Step 4: Simplify right side
    234.89x = 49,251.76
  5. Step 5: Solve for x
    x = 49,251.76/234.89
  6. Step 6: Final answer
    x = 209.68

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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.