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Finding the Third Proportional to 85.97 and 159.94

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Solution

The third proportional to 85.97 and 159.94 is: 297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85.97 : 159.94 = 159.94 : x
  2. Step 2: Convert to fraction form
    85.97/159.94 = 159.94/x
  3. Step 3: Cross multiply
    85.97x = 159.94 × 159.94
  4. Step 4: Simplify right side
    85.97x = 25,580.00
  5. Step 5: Solve for x
    x = 25,580.00/85.97
  6. Step 6: Final answer
    x = 297.55

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.