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Finding the Third Proportional to 274,125.75 and 411,189

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Solution

The third proportional to 274,125.75 and 411,189 is: 616,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,125.75 : 411,189 = 411,189 : x
  2. Step 2: Convert to fraction form
    274,125.75/411,189 = 411,189/x
  3. Step 3: Cross multiply
    274,125.75x = 411,189 × 411,189
  4. Step 4: Simplify right side
    274,125.75x = 169,076,393,721
  5. Step 5: Solve for x
    x = 169,076,393,721/274,125.75
  6. Step 6: Final answer
    x = 616,784.06

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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.