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Finding the Third Proportional to 189,382.50 and 405,366.75

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Solution

The third proportional to 189,382.50 and 405,366.75 is: 867,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,382.50 : 405,366.75 = 405,366.75 : x
  2. Step 2: Convert to fraction form
    189,382.50/405,366.75 = 405,366.75/x
  3. Step 3: Cross multiply
    189,382.50x = 405,366.75 × 405,366.75
  4. Step 4: Simplify right side
    189,382.50x = 164,322,202,005.56
  5. Step 5: Solve for x
    x = 164,322,202,005.56/189,382.50
  6. Step 6: Final answer
    x = 867,673.63

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.