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Finding the Fourth Proportional to 234.79, 323.50 and 169.18

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Solution

The fourth proportional to 234.79, 323.50 and 169.18 is: 233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.79 : 323.50 = 169.18 : x
  2. Step 2: Convert to fraction form
    234.79/323.50 = 169.18/x
  3. Step 3: Cross multiply
    234.79x = 323.50 × 169.18
  4. Step 4: Simplify right side
    234.79x = 54,729.73
  5. Step 5: Solve for x
    x = 54,729.73/234.79
  6. Step 6: Final answer
    x = 233.10

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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.