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Finding the Third Proportional to 203,427 and 425,443

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Solution

The third proportional to 203,427 and 425,443 is: 889,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,427 : 425,443 = 425,443 : x
  2. Step 2: Convert to fraction form
    203,427/425,443 = 425,443/x
  3. Step 3: Cross multiply
    203,427x = 425,443 × 425,443
  4. Step 4: Simplify right side
    203,427x = 181,001,746,249
  5. Step 5: Solve for x
    x = 181,001,746,249/203,427
  6. Step 6: Final answer
    x = 889,762.65

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.