Home / 327,936.36-491,865.66-103,287.72

Finding the Fourth Proportional to 327,936.36, 491,865.66 and 103,287.72

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Solution

The fourth proportional to 327,936.36, 491,865.66 and 103,287.72 is: 154,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,936.36 : 491,865.66 = 103,287.72 : x
  2. Step 2: Convert to fraction form
    327,936.36/491,865.66 = 103,287.72/x
  3. Step 3: Cross multiply
    327,936.36x = 491,865.66 × 103,287.72
  4. Step 4: Simplify right side
    327,936.36x = 50,803,682,567.70
  5. Step 5: Solve for x
    x = 50,803,682,567.70/327,936.36
  6. Step 6: Final answer
    x = 154,919.33

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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.