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Finding the Fourth Proportional to 424.75, 636.41 and 332.17

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Solution

The fourth proportional to 424.75, 636.41 and 332.17 is: 497.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.75 : 636.41 = 332.17 : x
  2. Step 2: Convert to fraction form
    424.75/636.41 = 332.17/x
  3. Step 3: Cross multiply
    424.75x = 636.41 × 332.17
  4. Step 4: Simplify right side
    424.75x = 211,394.85
  5. Step 5: Solve for x
    x = 211,394.85/424.75
  6. Step 6: Final answer
    x = 497.69

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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.