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Finding the Third Proportional to 202.03 and 308.92

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Solution

The third proportional to 202.03 and 308.92 is: 472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.03 : 308.92 = 308.92 : x
  2. Step 2: Convert to fraction form
    202.03/308.92 = 308.92/x
  3. Step 3: Cross multiply
    202.03x = 308.92 × 308.92
  4. Step 4: Simplify right side
    202.03x = 95,430.31
  5. Step 5: Solve for x
    x = 95,430.31/202.03
  6. Step 6: Final answer
    x = 472.35

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.