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Finding the Fourth Proportional to 234.80, 323.81 and 179.43

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Solution

The fourth proportional to 234.80, 323.81 and 179.43 is: 247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.80 : 323.81 = 179.43 : x
  2. Step 2: Convert to fraction form
    234.80/323.81 = 179.43/x
  3. Step 3: Cross multiply
    234.80x = 323.81 × 179.43
  4. Step 4: Simplify right side
    234.80x = 58,101.23
  5. Step 5: Solve for x
    x = 58,101.23/234.80
  6. Step 6: Final answer
    x = 247.45

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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.