Home / 327,018.40-490,527.82-90,361.31

Finding the Fourth Proportional to 327,018.40, 490,527.82 and 90,361.31

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Solution

The fourth proportional to 327,018.40, 490,527.82 and 90,361.31 is: 135,542.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,018.40 : 490,527.82 = 90,361.31 : x
  2. Step 2: Convert to fraction form
    327,018.40/490,527.82 = 90,361.31/x
  3. Step 3: Cross multiply
    327,018.40x = 490,527.82 × 90,361.31
  4. Step 4: Simplify right side
    327,018.40x = 44,324,734,321.10
  5. Step 5: Solve for x
    x = 44,324,734,321.10/327,018.40
  6. Step 6: Final answer
    x = 135,542.02

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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.