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Finding the Third Proportional to 308,936.25 and 669,253.50

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Solution

The third proportional to 308,936.25 and 669,253.50 is: 1,449,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,936.25 : 669,253.50 = 669,253.50 : x
  2. Step 2: Convert to fraction form
    308,936.25/669,253.50 = 669,253.50/x
  3. Step 3: Cross multiply
    308,936.25x = 669,253.50 × 669,253.50
  4. Step 4: Simplify right side
    308,936.25x = 447,900,247,262.25
  5. Step 5: Solve for x
    x = 447,900,247,262.25/308,936.25
  6. Step 6: Final answer
    x = 1,449,814.48

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.