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Finding the Third Proportional to 166.22 and 396.42

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Solution

The third proportional to 166.22 and 396.42 is: 945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.22 : 396.42 = 396.42 : x
  2. Step 2: Convert to fraction form
    166.22/396.42 = 396.42/x
  3. Step 3: Cross multiply
    166.22x = 396.42 × 396.42
  4. Step 4: Simplify right side
    166.22x = 157,150.30
  5. Step 5: Solve for x
    x = 157,150.30/166.22
  6. Step 6: Final answer
    x = 945.44

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.