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Finding the Fourth Proportional to 481.97, 723.09 and 238.43

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Solution

The fourth proportional to 481.97, 723.09 and 238.43 is: 357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.97 : 723.09 = 238.43 : x
  2. Step 2: Convert to fraction form
    481.97/723.09 = 238.43/x
  3. Step 3: Cross multiply
    481.97x = 723.09 × 238.43
  4. Step 4: Simplify right side
    481.97x = 172,406.35
  5. Step 5: Solve for x
    x = 172,406.35/481.97
  6. Step 6: Final answer
    x = 357.71

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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.