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Finding the Third Proportional to 552.50 and 1,143.25

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Solution

The third proportional to 552.50 and 1,143.25 is: 2,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.50 : 1,143.25 = 1,143.25 : x
  2. Step 2: Convert to fraction form
    552.50/1,143.25 = 1,143.25/x
  3. Step 3: Cross multiply
    552.50x = 1,143.25 × 1,143.25
  4. Step 4: Simplify right side
    552.50x = 1,307,020.56
  5. Step 5: Solve for x
    x = 1,307,020.56/552.50
  6. Step 6: Final answer
    x = 2,365.65

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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.