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Finding the Third Proportional to 79.75 and 126.44

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Solution

The third proportional to 79.75 and 126.44 is: 200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.75 : 126.44 = 126.44 : x
  2. Step 2: Convert to fraction form
    79.75/126.44 = 126.44/x
  3. Step 3: Cross multiply
    79.75x = 126.44 × 126.44
  4. Step 4: Simplify right side
    79.75x = 15,986.44
  5. Step 5: Solve for x
    x = 15,986.44/79.75
  6. Step 6: Final answer
    x = 200.46

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.