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Finding the Third Proportional to 3,218.25 and 4,508.25

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Solution

The third proportional to 3,218.25 and 4,508.25 is: 6,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.25 : 4,508.25 = 4,508.25 : x
  2. Step 2: Convert to fraction form
    3,218.25/4,508.25 = 4,508.25/x
  3. Step 3: Cross multiply
    3,218.25x = 4,508.25 × 4,508.25
  4. Step 4: Simplify right side
    3,218.25x = 20,324,318.06
  5. Step 5: Solve for x
    x = 20,324,318.06/3,218.25
  6. Step 6: Final answer
    x = 6,315.33

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.