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Finding the Third Proportional to 143,295.75 and 303,659.25

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Solution

The third proportional to 143,295.75 and 303,659.25 is: 643,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,295.75 : 303,659.25 = 303,659.25 : x
  2. Step 2: Convert to fraction form
    143,295.75/303,659.25 = 303,659.25/x
  3. Step 3: Cross multiply
    143,295.75x = 303,659.25 × 303,659.25
  4. Step 4: Simplify right side
    143,295.75x = 92,208,940,110.56
  5. Step 5: Solve for x
    x = 92,208,940,110.56/143,295.75
  6. Step 6: Final answer
    x = 643,486.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.