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Finding the Third Proportional to 203,120 and 440,138

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Solution

The third proportional to 203,120 and 440,138 is: 953,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,120 : 440,138 = 440,138 : x
  2. Step 2: Convert to fraction form
    203,120/440,138 = 440,138/x
  3. Step 3: Cross multiply
    203,120x = 440,138 × 440,138
  4. Step 4: Simplify right side
    203,120x = 193,721,459,044
  5. Step 5: Solve for x
    x = 193,721,459,044/203,120
  6. Step 6: Final answer
    x = 953,729.12

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.