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Finding the Third Proportional to 143,842.50 and 215,763.75

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Solution

The third proportional to 143,842.50 and 215,763.75 is: 323,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,842.50 : 215,763.75 = 215,763.75 : x
  2. Step 2: Convert to fraction form
    143,842.50/215,763.75 = 215,763.75/x
  3. Step 3: Cross multiply
    143,842.50x = 215,763.75 × 215,763.75
  4. Step 4: Simplify right side
    143,842.50x = 46,553,995,814.06
  5. Step 5: Solve for x
    x = 46,553,995,814.06/143,842.50
  6. Step 6: Final answer
    x = 323,645.63

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Similar ratio
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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.