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Finding the Third Proportional to 143,309.25 and 214,998.75

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Solution

The third proportional to 143,309.25 and 214,998.75 is: 322,550.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,309.25 : 214,998.75 = 214,998.75 : x
  2. Step 2: Convert to fraction form
    143,309.25/214,998.75 = 214,998.75/x
  3. Step 3: Cross multiply
    143,309.25x = 214,998.75 × 214,998.75
  4. Step 4: Simplify right side
    143,309.25x = 46,224,462,501.56
  5. Step 5: Solve for x
    x = 46,224,462,501.56/143,309.25
  6. Step 6: Final answer
    x = 322,550.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.