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Finding the Third Proportional to 116.69 and 173.09

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Solution

The third proportional to 116.69 and 173.09 is: 256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.69 : 173.09 = 173.09 : x
  2. Step 2: Convert to fraction form
    116.69/173.09 = 173.09/x
  3. Step 3: Cross multiply
    116.69x = 173.09 × 173.09
  4. Step 4: Simplify right side
    116.69x = 29,961.45
  5. Step 5: Solve for x
    x = 29,961.45/116.69
  6. Step 6: Final answer
    x = 256.77

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.