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Finding the Third Proportional to 6.88 and 17.06

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Solution

The third proportional to 6.88 and 17.06 is: 42.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.88 : 17.06 = 17.06 : x
  2. Step 2: Convert to fraction form
    6.88/17.06 = 17.06/x
  3. Step 3: Cross multiply
    6.88x = 17.06 × 17.06
  4. Step 4: Simplify right side
    6.88x = 291.13
  5. Step 5: Solve for x
    x = 291.13/6.88
  6. Step 6: Final answer
    x = 42.35

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.