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Finding the Fourth Proportional to 439.62, 658.27 and 302.95

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Solution

The fourth proportional to 439.62, 658.27 and 302.95 is: 453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.62 : 658.27 = 302.95 : x
  2. Step 2: Convert to fraction form
    439.62/658.27 = 302.95/x
  3. Step 3: Cross multiply
    439.62x = 658.27 × 302.95
  4. Step 4: Simplify right side
    439.62x = 199,422.90
  5. Step 5: Solve for x
    x = 199,422.90/439.62
  6. Step 6: Final answer
    x = 453.63

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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.