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Finding the Fourth Proportional to 234.42, 323.38 and 151.44

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Solution

The fourth proportional to 234.42, 323.38 and 151.44 is: 208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.42 : 323.38 = 151.44 : x
  2. Step 2: Convert to fraction form
    234.42/323.38 = 151.44/x
  3. Step 3: Cross multiply
    234.42x = 323.38 × 151.44
  4. Step 4: Simplify right side
    234.42x = 48,972.67
  5. Step 5: Solve for x
    x = 48,972.67/234.42
  6. Step 6: Final answer
    x = 208.91

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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.