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Finding the Third Proportional to 7.00 and 15.16

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Solution

The third proportional to 7.00 and 15.16 is: 32.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.00 : 15.16 = 15.16 : x
  2. Step 2: Convert to fraction form
    7.00/15.16 = 15.16/x
  3. Step 3: Cross multiply
    7.00x = 15.16 × 15.16
  4. Step 4: Simplify right side
    7.00x = 229.68
  5. Step 5: Solve for x
    x = 229.68/7.00
  6. Step 6: Final answer
    x = 32.81

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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.