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Finding the Third Proportional to 7.45 and 16.17

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Solution

The third proportional to 7.45 and 16.17 is: 35.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.45 : 16.17 = 16.17 : x
  2. Step 2: Convert to fraction form
    7.45/16.17 = 16.17/x
  3. Step 3: Cross multiply
    7.45x = 16.17 × 16.17
  4. Step 4: Simplify right side
    7.45x = 261.53
  5. Step 5: Solve for x
    x = 261.53/7.45
  6. Step 6: Final answer
    x = 35.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.