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Finding the Third Proportional to 550.75 and 1,207.25

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Solution

The third proportional to 550.75 and 1,207.25 is: 2,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.75 : 1,207.25 = 1,207.25 : x
  2. Step 2: Convert to fraction form
    550.75/1,207.25 = 1,207.25/x
  3. Step 3: Cross multiply
    550.75x = 1,207.25 × 1,207.25
  4. Step 4: Simplify right side
    550.75x = 1,457,452.56
  5. Step 5: Solve for x
    x = 1,457,452.56/550.75
  6. Step 6: Final answer
    x = 2,646.31

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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.