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Finding the Third Proportional to 207,938 and 437,605

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Solution

The third proportional to 207,938 and 437,605 is: 920,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,938 : 437,605 = 437,605 : x
  2. Step 2: Convert to fraction form
    207,938/437,605 = 437,605/x
  3. Step 3: Cross multiply
    207,938x = 437,605 × 437,605
  4. Step 4: Simplify right side
    207,938x = 191,498,136,025
  5. Step 5: Solve for x
    x = 191,498,136,025/207,938
  6. Step 6: Final answer
    x = 920,938.63

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.