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Finding the Fourth Proportional to 481.38, 663.84 and 323.97

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Solution

The fourth proportional to 481.38, 663.84 and 323.97 is: 446.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.38 : 663.84 = 323.97 : x
  2. Step 2: Convert to fraction form
    481.38/663.84 = 323.97/x
  3. Step 3: Cross multiply
    481.38x = 663.84 × 323.97
  4. Step 4: Simplify right side
    481.38x = 215,064.24
  5. Step 5: Solve for x
    x = 215,064.24/481.38
  6. Step 6: Final answer
    x = 446.77

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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.