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Finding the Fourth Proportional to 322.92, 481.89 and 271.08

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Solution

The fourth proportional to 322.92, 481.89 and 271.08 is: 404.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.92 : 481.89 = 271.08 : x
  2. Step 2: Convert to fraction form
    322.92/481.89 = 271.08/x
  3. Step 3: Cross multiply
    322.92x = 481.89 × 271.08
  4. Step 4: Simplify right side
    322.92x = 130,630.74
  5. Step 5: Solve for x
    x = 130,630.74/322.92
  6. Step 6: Final answer
    x = 404.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.