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Finding the Third Proportional to 276.66 and 605.25

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Solution

The third proportional to 276.66 and 605.25 is: 1,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.66 : 605.25 = 605.25 : x
  2. Step 2: Convert to fraction form
    276.66/605.25 = 605.25/x
  3. Step 3: Cross multiply
    276.66x = 605.25 × 605.25
  4. Step 4: Simplify right side
    276.66x = 366,327.56
  5. Step 5: Solve for x
    x = 366,327.56/276.66
  6. Step 6: Final answer
    x = 1,324.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.