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Finding the Fourth Proportional to 562.74, 842.00 and 331.71

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Solution

The fourth proportional to 562.74, 842.00 and 331.71 is: 496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.74 : 842.00 = 331.71 : x
  2. Step 2: Convert to fraction form
    562.74/842.00 = 331.71/x
  3. Step 3: Cross multiply
    562.74x = 842.00 × 331.71
  4. Step 4: Simplify right side
    562.74x = 279,298.16
  5. Step 5: Solve for x
    x = 279,298.16/562.74
  6. Step 6: Final answer
    x = 496.32

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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.