Home / 206,140.92-308,856.29-161,144.81

Finding the Fourth Proportional to 206,140.92, 308,856.29 and 161,144.81

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Solution

The fourth proportional to 206,140.92, 308,856.29 and 161,144.81 is: 241,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,140.92 : 308,856.29 = 161,144.81 : x
  2. Step 2: Convert to fraction form
    206,140.92/308,856.29 = 161,144.81/x
  3. Step 3: Cross multiply
    206,140.92x = 308,856.29 × 161,144.81
  4. Step 4: Simplify right side
    206,140.92x = 49,770,585,819.35
  5. Step 5: Solve for x
    x = 49,770,585,819.35/206,140.92
  6. Step 6: Final answer
    x = 241,439.62

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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.