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Finding the Fourth Proportional to 424.24, 635.08 and 308.52

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Solution

The fourth proportional to 424.24, 635.08 and 308.52 is: 461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.24 : 635.08 = 308.52 : x
  2. Step 2: Convert to fraction form
    424.24/635.08 = 308.52/x
  3. Step 3: Cross multiply
    424.24x = 635.08 × 308.52
  4. Step 4: Simplify right side
    424.24x = 195,934.88
  5. Step 5: Solve for x
    x = 195,934.88/424.24
  6. Step 6: Final answer
    x = 461.85

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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.