Home / 320,953.20-442,846.80-193,626.96

Finding the Fourth Proportional to 320,953.20, 442,846.80 and 193,626.96

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Solution

The fourth proportional to 320,953.20, 442,846.80 and 193,626.96 is: 267,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,953.20 : 442,846.80 = 193,626.96 : x
  2. Step 2: Convert to fraction form
    320,953.20/442,846.80 = 193,626.96/x
  3. Step 3: Cross multiply
    320,953.20x = 442,846.80 × 193,626.96
  4. Step 4: Simplify right side
    320,953.20x = 85,747,079,629.73
  5. Step 5: Solve for x
    x = 85,747,079,629.73/320,953.20
  6. Step 6: Final answer
    x = 267,163.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.