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Finding the Third Proportional to 11.67 and 29.57

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Solution

The third proportional to 11.67 and 29.57 is: 74.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.67 : 29.57 = 29.57 : x
  2. Step 2: Convert to fraction form
    11.67/29.57 = 29.57/x
  3. Step 3: Cross multiply
    11.67x = 29.57 × 29.57
  4. Step 4: Simplify right side
    11.67x = 874.17
  5. Step 5: Solve for x
    x = 874.17/11.67
  6. Step 6: Final answer
    x = 74.90

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Why These Related Problems?

These problems maintain the same ratio (2.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.