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Finding the Third Proportional to 251,055 and 551,865

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Solution

The third proportional to 251,055 and 551,865 is: 1,213,100.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,055 : 551,865 = 551,865 : x
  2. Step 2: Convert to fraction form
    251,055/551,865 = 551,865/x
  3. Step 3: Cross multiply
    251,055x = 551,865 × 551,865
  4. Step 4: Simplify right side
    251,055x = 304,554,978,225
  5. Step 5: Solve for x
    x = 304,554,978,225/251,055
  6. Step 6: Final answer
    x = 1,213,100.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.