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Finding the Third Proportional to 256,253 and 551,872

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Solution

The third proportional to 256,253 and 551,872 is: 1,188,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,253 : 551,872 = 551,872 : x
  2. Step 2: Convert to fraction form
    256,253/551,872 = 551,872/x
  3. Step 3: Cross multiply
    256,253x = 551,872 × 551,872
  4. Step 4: Simplify right side
    256,253x = 304,562,704,384
  5. Step 5: Solve for x
    x = 304,562,704,384/256,253
  6. Step 6: Final answer
    x = 1,188,523.47

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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.