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Finding the Fourth Proportional to 327.01, 490.09 and 249.69

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Solution

The fourth proportional to 327.01, 490.09 and 249.69 is: 374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.01 : 490.09 = 249.69 : x
  2. Step 2: Convert to fraction form
    327.01/490.09 = 249.69/x
  3. Step 3: Cross multiply
    327.01x = 490.09 × 249.69
  4. Step 4: Simplify right side
    327.01x = 122,370.57
  5. Step 5: Solve for x
    x = 122,370.57/327.01
  6. Step 6: Final answer
    x = 374.21

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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.