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Finding the Third Proportional to 45.14 and 91.90

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Solution

The third proportional to 45.14 and 91.90 is: 187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.14 : 91.90 = 91.90 : x
  2. Step 2: Convert to fraction form
    45.14/91.90 = 91.90/x
  3. Step 3: Cross multiply
    45.14x = 91.90 × 91.90
  4. Step 4: Simplify right side
    45.14x = 8,445.32
  5. Step 5: Solve for x
    x = 8,445.32/45.14
  6. Step 6: Final answer
    x = 187.09

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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.