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Finding the Third Proportional to 256,355 and 560,956

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Solution

The third proportional to 256,355 and 560,956 is: 1,227,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,355 : 560,956 = 560,956 : x
  2. Step 2: Convert to fraction form
    256,355/560,956 = 560,956/x
  3. Step 3: Cross multiply
    256,355x = 560,956 × 560,956
  4. Step 4: Simplify right side
    256,355x = 314,671,633,936
  5. Step 5: Solve for x
    x = 314,671,633,936/256,355
  6. Step 6: Final answer
    x = 1,227,483.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.