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Finding the Third Proportional to 7.62 and 16.45

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Solution

The third proportional to 7.62 and 16.45 is: 35.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.62 : 16.45 = 16.45 : x
  2. Step 2: Convert to fraction form
    7.62/16.45 = 16.45/x
  3. Step 3: Cross multiply
    7.62x = 16.45 × 16.45
  4. Step 4: Simplify right side
    7.62x = 270.70
  5. Step 5: Solve for x
    x = 270.70/7.62
  6. Step 6: Final answer
    x = 35.50

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.