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Finding the Fourth Proportional to 439.92, 658.08 and 246.48

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Solution

The fourth proportional to 439.92, 658.08 and 246.48 is: 368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.92 : 658.08 = 246.48 : x
  2. Step 2: Convert to fraction form
    439.92/658.08 = 246.48/x
  3. Step 3: Cross multiply
    439.92x = 658.08 × 246.48
  4. Step 4: Simplify right side
    439.92x = 162,203.56
  5. Step 5: Solve for x
    x = 162,203.56/439.92
  6. Step 6: Final answer
    x = 368.71

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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.