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Finding the Third Proportional to 276,231 and 415,371

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Solution

The third proportional to 276,231 and 415,371 is: 624,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,231 : 415,371 = 415,371 : x
  2. Step 2: Convert to fraction form
    276,231/415,371 = 415,371/x
  3. Step 3: Cross multiply
    276,231x = 415,371 × 415,371
  4. Step 4: Simplify right side
    276,231x = 172,533,067,641
  5. Step 5: Solve for x
    x = 172,533,067,641/276,231
  6. Step 6: Final answer
    x = 624,597.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.