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Finding the Third Proportional to 33.38 and 70.22

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Solution

The third proportional to 33.38 and 70.22 is: 147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.38 : 70.22 = 70.22 : x
  2. Step 2: Convert to fraction form
    33.38/70.22 = 70.22/x
  3. Step 3: Cross multiply
    33.38x = 70.22 × 70.22
  4. Step 4: Simplify right side
    33.38x = 4,930.67
  5. Step 5: Solve for x
    x = 4,930.67/33.38
  6. Step 6: Final answer
    x = 147.74

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.