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Finding the Third Proportional to 202.18 and 426.73

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Solution

The third proportional to 202.18 and 426.73 is: 900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.18 : 426.73 = 426.73 : x
  2. Step 2: Convert to fraction form
    202.18/426.73 = 426.73/x
  3. Step 3: Cross multiply
    202.18x = 426.73 × 426.73
  4. Step 4: Simplify right side
    202.18x = 182,095.56
  5. Step 5: Solve for x
    x = 182,095.56/202.18
  6. Step 6: Final answer
    x = 900.64

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.