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Finding the Third Proportional to 256,832 and 340,788

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Solution

The third proportional to 256,832 and 340,788 is: 452,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,832 : 340,788 = 340,788 : x
  2. Step 2: Convert to fraction form
    256,832/340,788 = 340,788/x
  3. Step 3: Cross multiply
    256,832x = 340,788 × 340,788
  4. Step 4: Simplify right side
    256,832x = 116,136,460,944
  5. Step 5: Solve for x
    x = 116,136,460,944/256,832
  6. Step 6: Final answer
    x = 452,188.44

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.