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Finding the Third Proportional to 207,992.25 and 320,800.50

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Solution

The third proportional to 207,992.25 and 320,800.50 is: 494,792.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,992.25 : 320,800.50 = 320,800.50 : x
  2. Step 2: Convert to fraction form
    207,992.25/320,800.50 = 320,800.50/x
  3. Step 3: Cross multiply
    207,992.25x = 320,800.50 × 320,800.50
  4. Step 4: Simplify right side
    207,992.25x = 102,912,960,800.25
  5. Step 5: Solve for x
    x = 102,912,960,800.25/207,992.25
  6. Step 6: Final answer
    x = 494,792.29

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.