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Finding the Third Proportional to 30.94 and 73.97

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Solution

The third proportional to 30.94 and 73.97 is: 176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.94 : 73.97 = 73.97 : x
  2. Step 2: Convert to fraction form
    30.94/73.97 = 73.97/x
  3. Step 3: Cross multiply
    30.94x = 73.97 × 73.97
  4. Step 4: Simplify right side
    30.94x = 5,471.38
  5. Step 5: Solve for x
    x = 5,471.38/30.94
  6. Step 6: Final answer
    x = 176.85

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.