Home / 327,238.35-490,868.25-90,561.21

Finding the Fourth Proportional to 327,238.35, 490,868.25 and 90,561.21

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Solution

The fourth proportional to 327,238.35, 490,868.25 and 90,561.21 is: 135,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,238.35 : 490,868.25 = 90,561.21 : x
  2. Step 2: Convert to fraction form
    327,238.35/490,868.25 = 90,561.21/x
  3. Step 3: Cross multiply
    327,238.35x = 490,868.25 × 90,561.21
  4. Step 4: Simplify right side
    327,238.35x = 44,453,622,670.58
  5. Step 5: Solve for x
    x = 44,453,622,670.58/327,238.35
  6. Step 6: Final answer
    x = 135,844.78

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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.