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Finding the Fourth Proportional to 327,379.47, 490,213.53 and 307,425.57

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Solution

The fourth proportional to 327,379.47, 490,213.53 and 307,425.57 is: 460,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,379.47 : 490,213.53 = 307,425.57 : x
  2. Step 2: Convert to fraction form
    327,379.47/490,213.53 = 307,425.57/x
  3. Step 3: Cross multiply
    327,379.47x = 490,213.53 × 307,425.57
  4. Step 4: Simplify right side
    327,379.47x = 150,704,173,881.96
  5. Step 5: Solve for x
    x = 150,704,173,881.96/327,379.47
  6. Step 6: Final answer
    x = 460,334.83

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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.