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Finding the Third Proportional to 204,510 and 313,902

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Solution

The third proportional to 204,510 and 313,902 is: 481,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,510 : 313,902 = 313,902 : x
  2. Step 2: Convert to fraction form
    204,510/313,902 = 313,902/x
  3. Step 3: Cross multiply
    204,510x = 313,902 × 313,902
  4. Step 4: Simplify right side
    204,510x = 98,534,465,604
  5. Step 5: Solve for x
    x = 98,534,465,604/204,510
  6. Step 6: Final answer
    x = 481,807.57

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.