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Finding the Third Proportional to 10.45 and 16.55

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Solution

The third proportional to 10.45 and 16.55 is: 26.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.45 : 16.55 = 16.55 : x
  2. Step 2: Convert to fraction form
    10.45/16.55 = 16.55/x
  3. Step 3: Cross multiply
    10.45x = 16.55 × 16.55
  4. Step 4: Simplify right side
    10.45x = 273.80
  5. Step 5: Solve for x
    x = 273.80/10.45
  6. Step 6: Final answer
    x = 26.19

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.