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Finding the Fourth Proportional to 349.52, 481.04 and 324.35

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Solution

The fourth proportional to 349.52, 481.04 and 324.35 is: 446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.52 : 481.04 = 324.35 : x
  2. Step 2: Convert to fraction form
    349.52/481.04 = 324.35/x
  3. Step 3: Cross multiply
    349.52x = 481.04 × 324.35
  4. Step 4: Simplify right side
    349.52x = 156,027.02
  5. Step 5: Solve for x
    x = 156,027.02/349.52
  6. Step 6: Final answer
    x = 446.41

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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.