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Finding the Third Proportional to 203,606 and 438,430

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Solution

The third proportional to 203,606 and 438,430 is: 944,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,606 : 438,430 = 438,430 : x
  2. Step 2: Convert to fraction form
    203,606/438,430 = 438,430/x
  3. Step 3: Cross multiply
    203,606x = 438,430 × 438,430
  4. Step 4: Simplify right side
    203,606x = 192,220,864,900
  5. Step 5: Solve for x
    x = 192,220,864,900/203,606
  6. Step 6: Final answer
    x = 944,082.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.