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Finding the Fourth Proportional to 562.32, 842.22 and 488.25

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Solution

The fourth proportional to 562.32, 842.22 and 488.25 is: 731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.32 : 842.22 = 488.25 : x
  2. Step 2: Convert to fraction form
    562.32/842.22 = 488.25/x
  3. Step 3: Cross multiply
    562.32x = 842.22 × 488.25
  4. Step 4: Simplify right side
    562.32x = 411,213.92
  5. Step 5: Solve for x
    x = 411,213.92/562.32
  6. Step 6: Final answer
    x = 731.28

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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.