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Finding the Third Proportional to 140.91 and 222.75

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Solution

The third proportional to 140.91 and 222.75 is: 352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.91 : 222.75 = 222.75 : x
  2. Step 2: Convert to fraction form
    140.91/222.75 = 222.75/x
  3. Step 3: Cross multiply
    140.91x = 222.75 × 222.75
  4. Step 4: Simplify right side
    140.91x = 49,617.56
  5. Step 5: Solve for x
    x = 49,617.56/140.91
  6. Step 6: Final answer
    x = 352.13

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.