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Finding the Third Proportional to 28.50 and 73.97

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Solution

The third proportional to 28.50 and 73.97 is: 191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.50 : 73.97 = 73.97 : x
  2. Step 2: Convert to fraction form
    28.50/73.97 = 73.97/x
  3. Step 3: Cross multiply
    28.50x = 73.97 × 73.97
  4. Step 4: Simplify right side
    28.50x = 5,471.38
  5. Step 5: Solve for x
    x = 5,471.38/28.50
  6. Step 6: Final answer
    x = 191.98

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.