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Finding the Fourth Proportional to 481.54, 722.37 and 249.79

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Solution

The fourth proportional to 481.54, 722.37 and 249.79 is: 374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.54 : 722.37 = 249.79 : x
  2. Step 2: Convert to fraction form
    481.54/722.37 = 249.79/x
  3. Step 3: Cross multiply
    481.54x = 722.37 × 249.79
  4. Step 4: Simplify right side
    481.54x = 180,440.80
  5. Step 5: Solve for x
    x = 180,440.80/481.54
  6. Step 6: Final answer
    x = 374.72

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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.