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Finding the Third Proportional to 381,348 and 559,269

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Solution

The third proportional to 381,348 and 559,269 is: 820,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,348 : 559,269 = 559,269 : x
  2. Step 2: Convert to fraction form
    381,348/559,269 = 559,269/x
  3. Step 3: Cross multiply
    381,348x = 559,269 × 559,269
  4. Step 4: Simplify right side
    381,348x = 312,781,814,361
  5. Step 5: Solve for x
    x = 312,781,814,361/381,348
  6. Step 6: Final answer
    x = 820,200.48

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.