Home / 218,464.28-327,733.80-100,145.78

Finding the Fourth Proportional to 218,464.28, 327,733.80 and 100,145.78

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Solution

The fourth proportional to 218,464.28, 327,733.80 and 100,145.78 is: 150,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,464.28 : 327,733.80 = 100,145.78 : x
  2. Step 2: Convert to fraction form
    218,464.28/327,733.80 = 100,145.78/x
  3. Step 3: Cross multiply
    218,464.28x = 327,733.80 × 100,145.78
  4. Step 4: Simplify right side
    218,464.28x = 32,821,157,033.36
  5. Step 5: Solve for x
    x = 32,821,157,033.36/218,464.28
  6. Step 6: Final answer
    x = 150,235.81

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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.