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Finding the Third Proportional to 86.48 and 176.77

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Solution

The third proportional to 86.48 and 176.77 is: 361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.48 : 176.77 = 176.77 : x
  2. Step 2: Convert to fraction form
    86.48/176.77 = 176.77/x
  3. Step 3: Cross multiply
    86.48x = 176.77 × 176.77
  4. Step 4: Simplify right side
    86.48x = 31,246.09
  5. Step 5: Solve for x
    x = 31,246.09/86.48
  6. Step 6: Final answer
    x = 361.29

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.