Home / 206,165.46-309,057.91-143,015.38

Finding the Fourth Proportional to 206,165.46, 309,057.91 and 143,015.38

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Solution

The fourth proportional to 206,165.46, 309,057.91 and 143,015.38 is: 214,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,165.46 : 309,057.91 = 143,015.38 : x
  2. Step 2: Convert to fraction form
    206,165.46/309,057.91 = 143,015.38/x
  3. Step 3: Cross multiply
    206,165.46x = 309,057.91 × 143,015.38
  4. Step 4: Simplify right side
    206,165.46x = 44,200,034,440.66
  5. Step 5: Solve for x
    x = 44,200,034,440.66/206,165.46
  6. Step 6: Final answer
    x = 214,391.07

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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.