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Finding the Third Proportional to 17.30 and 26.30

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Solution

The third proportional to 17.30 and 26.30 is: 39.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.30 : 26.30 = 26.30 : x
  2. Step 2: Convert to fraction form
    17.30/26.30 = 26.30/x
  3. Step 3: Cross multiply
    17.30x = 26.30 × 26.30
  4. Step 4: Simplify right side
    17.30x = 691.53
  5. Step 5: Solve for x
    x = 691.53/17.30
  6. Step 6: Final answer
    x = 39.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.