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Finding the Third Proportional to 203,916 and 439,080

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Solution

The third proportional to 203,916 and 439,080 is: 945,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,916 : 439,080 = 439,080 : x
  2. Step 2: Convert to fraction form
    203,916/439,080 = 439,080/x
  3. Step 3: Cross multiply
    203,916x = 439,080 × 439,080
  4. Step 4: Simplify right side
    203,916x = 192,791,246,400
  5. Step 5: Solve for x
    x = 192,791,246,400/203,916
  6. Step 6: Final answer
    x = 945,444.43

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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.