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Finding the Third Proportional to 203,908 and 439,064

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Solution

The third proportional to 203,908 and 439,064 is: 945,412.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,908 : 439,064 = 439,064 : x
  2. Step 2: Convert to fraction form
    203,908/439,064 = 439,064/x
  3. Step 3: Cross multiply
    203,908x = 439,064 × 439,064
  4. Step 4: Simplify right side
    203,908x = 192,777,196,096
  5. Step 5: Solve for x
    x = 192,777,196,096/203,908
  6. Step 6: Final answer
    x = 945,412.62

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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.