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Finding the Third Proportional to 300.75 and 563.38

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Solution

The third proportional to 300.75 and 563.38 is: 1,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.75 : 563.38 = 563.38 : x
  2. Step 2: Convert to fraction form
    300.75/563.38 = 563.38/x
  3. Step 3: Cross multiply
    300.75x = 563.38 × 563.38
  4. Step 4: Simplify right side
    300.75x = 317,391.39
  5. Step 5: Solve for x
    x = 317,391.39/300.75
  6. Step 6: Final answer
    x = 1,055.33

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.