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Finding the Third Proportional to 305,997.75 and 661,263.75

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Solution

The third proportional to 305,997.75 and 661,263.75 is: 1,428,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,997.75 : 661,263.75 = 661,263.75 : x
  2. Step 2: Convert to fraction form
    305,997.75/661,263.75 = 661,263.75/x
  3. Step 3: Cross multiply
    305,997.75x = 661,263.75 × 661,263.75
  4. Step 4: Simplify right side
    305,997.75x = 437,269,747,064.06
  5. Step 5: Solve for x
    x = 437,269,747,064.06/305,997.75
  6. Step 6: Final answer
    x = 1,428,996.61

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.