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Finding the Third Proportional to 28.36 and 61.22

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Solution

The third proportional to 28.36 and 61.22 is: 132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.36 : 61.22 = 61.22 : x
  2. Step 2: Convert to fraction form
    28.36/61.22 = 61.22/x
  3. Step 3: Cross multiply
    28.36x = 61.22 × 61.22
  4. Step 4: Simplify right side
    28.36x = 3,747.74
  5. Step 5: Solve for x
    x = 3,747.74/28.36
  6. Step 6: Final answer
    x = 132.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.