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Finding the Third Proportional to 217,021.50 and 450,418.50

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Solution

The third proportional to 217,021.50 and 450,418.50 is: 934,823.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,021.50 : 450,418.50 = 450,418.50 : x
  2. Step 2: Convert to fraction form
    217,021.50/450,418.50 = 450,418.50/x
  3. Step 3: Cross multiply
    217,021.50x = 450,418.50 × 450,418.50
  4. Step 4: Simplify right side
    217,021.50x = 202,876,825,142.25
  5. Step 5: Solve for x
    x = 202,876,825,142.25/217,021.50
  6. Step 6: Final answer
    x = 934,823.62

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.