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Finding the Third Proportional to 33.75 and 74.13

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Solution

The third proportional to 33.75 and 74.13 is: 162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.75 : 74.13 = 74.13 : x
  2. Step 2: Convert to fraction form
    33.75/74.13 = 74.13/x
  3. Step 3: Cross multiply
    33.75x = 74.13 × 74.13
  4. Step 4: Simplify right side
    33.75x = 5,494.52
  5. Step 5: Solve for x
    x = 5,494.52/33.75
  6. Step 6: Final answer
    x = 162.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.