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Finding the Fourth Proportional to 481.08, 720.88 and 297.92

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Solution

The fourth proportional to 481.08, 720.88 and 297.92 is: 446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.08 : 720.88 = 297.92 : x
  2. Step 2: Convert to fraction form
    481.08/720.88 = 297.92/x
  3. Step 3: Cross multiply
    481.08x = 720.88 × 297.92
  4. Step 4: Simplify right side
    481.08x = 214,764.57
  5. Step 5: Solve for x
    x = 214,764.57/481.08
  6. Step 6: Final answer
    x = 446.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.