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Finding the Third Proportional to 7.94 and 16.30

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Solution

The third proportional to 7.94 and 16.30 is: 33.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.94 : 16.30 = 16.30 : x
  2. Step 2: Convert to fraction form
    7.94/16.30 = 16.30/x
  3. Step 3: Cross multiply
    7.94x = 16.30 × 16.30
  4. Step 4: Simplify right side
    7.94x = 265.68
  5. Step 5: Solve for x
    x = 265.68/7.94
  6. Step 6: Final answer
    x = 33.46

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.