Home / 327,268.50-490,903.38-90,611.88

Finding the Fourth Proportional to 327,268.50, 490,903.38 and 90,611.88

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Solution

The fourth proportional to 327,268.50, 490,903.38 and 90,611.88 is: 135,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,268.50 : 490,903.38 = 90,611.88 : x
  2. Step 2: Convert to fraction form
    327,268.50/490,903.38 = 90,611.88/x
  3. Step 3: Cross multiply
    327,268.50x = 490,903.38 × 90,611.88
  4. Step 4: Simplify right side
    327,268.50x = 44,481,678,160.15
  5. Step 5: Solve for x
    x = 44,481,678,160.15/327,268.50
  6. Step 6: Final answer
    x = 135,917.99

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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.