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Finding the Fourth Proportional to 234.20, 323.13 and 140.99

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Solution

The fourth proportional to 234.20, 323.13 and 140.99 is: 194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.20 : 323.13 = 140.99 : x
  2. Step 2: Convert to fraction form
    234.20/323.13 = 140.99/x
  3. Step 3: Cross multiply
    234.20x = 323.13 × 140.99
  4. Step 4: Simplify right side
    234.20x = 45,557.01
  5. Step 5: Solve for x
    x = 45,557.01/234.20
  6. Step 6: Final answer
    x = 194.52

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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.