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Finding the Third Proportional to 308,310.75 and 672,500.25

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Solution

The third proportional to 308,310.75 and 672,500.25 is: 1,466,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,310.75 : 672,500.25 = 672,500.25 : x
  2. Step 2: Convert to fraction form
    308,310.75/672,500.25 = 672,500.25/x
  3. Step 3: Cross multiply
    308,310.75x = 672,500.25 × 672,500.25
  4. Step 4: Simplify right side
    308,310.75x = 452,256,586,250.06
  5. Step 5: Solve for x
    x = 452,256,586,250.06/308,310.75
  6. Step 6: Final answer
    x = 1,466,885.56

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.