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Finding the Third Proportional to 79.17 and 170.58

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Solution

The third proportional to 79.17 and 170.58 is: 367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.17 : 170.58 = 170.58 : x
  2. Step 2: Convert to fraction form
    79.17/170.58 = 170.58/x
  3. Step 3: Cross multiply
    79.17x = 170.58 × 170.58
  4. Step 4: Simplify right side
    79.17x = 29,096.90
  5. Step 5: Solve for x
    x = 29,096.90/79.17
  6. Step 6: Final answer
    x = 367.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.