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Finding the Third Proportional to 143,912.25 and 231,090.75

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Solution

The third proportional to 143,912.25 and 231,090.75 is: 371,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,912.25 : 231,090.75 = 231,090.75 : x
  2. Step 2: Convert to fraction form
    143,912.25/231,090.75 = 231,090.75/x
  3. Step 3: Cross multiply
    143,912.25x = 231,090.75 × 231,090.75
  4. Step 4: Simplify right side
    143,912.25x = 53,402,934,735.56
  5. Step 5: Solve for x
    x = 53,402,934,735.56/143,912.25
  6. Step 6: Final answer
    x = 371,079.84

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.