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Finding the Third Proportional to 143,273.25 and 307,689.75

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Solution

The third proportional to 143,273.25 and 307,689.75 is: 660,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,273.25 : 307,689.75 = 307,689.75 : x
  2. Step 2: Convert to fraction form
    143,273.25/307,689.75 = 307,689.75/x
  3. Step 3: Cross multiply
    143,273.25x = 307,689.75 × 307,689.75
  4. Step 4: Simplify right side
    143,273.25x = 94,672,982,255.06
  5. Step 5: Solve for x
    x = 94,672,982,255.06/143,273.25
  6. Step 6: Final answer
    x = 660,786.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.