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Finding the Third Proportional to 318,364.50 and 481,645.50

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Solution

The third proportional to 318,364.50 and 481,645.50 is: 728,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,364.50 : 481,645.50 = 481,645.50 : x
  2. Step 2: Convert to fraction form
    318,364.50/481,645.50 = 481,645.50/x
  3. Step 3: Cross multiply
    318,364.50x = 481,645.50 × 481,645.50
  4. Step 4: Simplify right side
    318,364.50x = 231,982,387,670.25
  5. Step 5: Solve for x
    x = 231,982,387,670.25/318,364.50
  6. Step 6: Final answer
    x = 728,669.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.