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Finding the Third Proportional to 256,516 and 565,589

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Solution

The third proportional to 256,516 and 565,589 is: 1,247,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,516 : 565,589 = 565,589 : x
  2. Step 2: Convert to fraction form
    256,516/565,589 = 565,589/x
  3. Step 3: Cross multiply
    256,516x = 565,589 × 565,589
  4. Step 4: Simplify right side
    256,516x = 319,890,916,921
  5. Step 5: Solve for x
    x = 319,890,916,921/256,516
  6. Step 6: Final answer
    x = 1,247,060.29

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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.