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Finding the Third Proportional to 207,993 and 297,220

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Solution

The third proportional to 207,993 and 297,220 is: 424,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,993 : 297,220 = 297,220 : x
  2. Step 2: Convert to fraction form
    207,993/297,220 = 297,220/x
  3. Step 3: Cross multiply
    207,993x = 297,220 × 297,220
  4. Step 4: Simplify right side
    207,993x = 88,339,728,400
  5. Step 5: Solve for x
    x = 88,339,728,400/207,993
  6. Step 6: Final answer
    x = 424,724.53

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.