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Finding the Third Proportional to 84.56 and 113.34

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Solution

The third proportional to 84.56 and 113.34 is: 151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.56 : 113.34 = 113.34 : x
  2. Step 2: Convert to fraction form
    84.56/113.34 = 113.34/x
  3. Step 3: Cross multiply
    84.56x = 113.34 × 113.34
  4. Step 4: Simplify right side
    84.56x = 12,846.81
  5. Step 5: Solve for x
    x = 12,846.81/84.56
  6. Step 6: Final answer
    x = 151.92

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.