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Finding the Third Proportional to 266.75 and 401.19

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Solution

The third proportional to 266.75 and 401.19 is: 603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.75 : 401.19 = 401.19 : x
  2. Step 2: Convert to fraction form
    266.75/401.19 = 401.19/x
  3. Step 3: Cross multiply
    266.75x = 401.19 × 401.19
  4. Step 4: Simplify right side
    266.75x = 160,951.41
  5. Step 5: Solve for x
    x = 160,951.41/266.75
  6. Step 6: Final answer
    x = 603.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.