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Finding the Third Proportional to 276.25 and 571.63

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Solution

The third proportional to 276.25 and 571.63 is: 1,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.25 : 571.63 = 571.63 : x
  2. Step 2: Convert to fraction form
    276.25/571.63 = 571.63/x
  3. Step 3: Cross multiply
    276.25x = 571.63 × 571.63
  4. Step 4: Simplify right side
    276.25x = 326,755.14
  5. Step 5: Solve for x
    x = 326,755.14/276.25
  6. Step 6: Final answer
    x = 1,182.82

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.