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Finding the Third Proportional to 323,983.50 and 668,668.50

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Solution

The third proportional to 323,983.50 and 668,668.50 is: 1,380,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,983.50 : 668,668.50 = 668,668.50 : x
  2. Step 2: Convert to fraction form
    323,983.50/668,668.50 = 668,668.50/x
  3. Step 3: Cross multiply
    323,983.50x = 668,668.50 × 668,668.50
  4. Step 4: Simplify right side
    323,983.50x = 447,117,562,892.25
  5. Step 5: Solve for x
    x = 447,117,562,892.25/323,983.50
  6. Step 6: Final answer
    x = 1,380,062.76

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.