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Finding the Fourth Proportional to 327,397.50, 490,183.79 and 167,128.65

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Solution

The fourth proportional to 327,397.50, 490,183.79 and 167,128.65 is: 250,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,397.50 : 490,183.79 = 167,128.65 : x
  2. Step 2: Convert to fraction form
    327,397.50/490,183.79 = 167,128.65/x
  3. Step 3: Cross multiply
    327,397.50x = 490,183.79 × 167,128.65
  4. Step 4: Simplify right side
    327,397.50x = 81,923,754,238.94
  5. Step 5: Solve for x
    x = 81,923,754,238.94/327,397.50
  6. Step 6: Final answer
    x = 250,227.18

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1.5x scale

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.