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Finding the Fourth Proportional to 234.92, 323.84 and 193.40

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Solution

The fourth proportional to 234.92, 323.84 and 193.40 is: 266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.92 : 323.84 = 193.40 : x
  2. Step 2: Convert to fraction form
    234.92/323.84 = 193.40/x
  3. Step 3: Cross multiply
    234.92x = 323.84 × 193.40
  4. Step 4: Simplify right side
    234.92x = 62,630.66
  5. Step 5: Solve for x
    x = 62,630.66/234.92
  6. Step 6: Final answer
    x = 266.60

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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.