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Finding the Third Proportional to 49.78 and 92.34

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Solution

The third proportional to 49.78 and 92.34 is: 171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.78 : 92.34 = 92.34 : x
  2. Step 2: Convert to fraction form
    49.78/92.34 = 92.34/x
  3. Step 3: Cross multiply
    49.78x = 92.34 × 92.34
  4. Step 4: Simplify right side
    49.78x = 8,527.37
  5. Step 5: Solve for x
    x = 8,527.37/49.78
  6. Step 6: Final answer
    x = 171.30

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.