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Finding the Third Proportional to 138,991.50 and 303,468.75

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Solution

The third proportional to 138,991.50 and 303,468.75 is: 662,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,991.50 : 303,468.75 = 303,468.75 : x
  2. Step 2: Convert to fraction form
    138,991.50/303,468.75 = 303,468.75/x
  3. Step 3: Cross multiply
    138,991.50x = 303,468.75 × 303,468.75
  4. Step 4: Simplify right side
    138,991.50x = 92,093,282,226.56
  5. Step 5: Solve for x
    x = 92,093,282,226.56/138,991.50
  6. Step 6: Final answer
    x = 662,582.12

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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.