Home / 327,198.20-490,808.21-90,521.06

Finding the Fourth Proportional to 327,198.20, 490,808.21 and 90,521.06

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Solution

The fourth proportional to 327,198.20, 490,808.21 and 90,521.06 is: 135,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,198.20 : 490,808.21 = 90,521.06 : x
  2. Step 2: Convert to fraction form
    327,198.20/490,808.21 = 90,521.06/x
  3. Step 3: Cross multiply
    327,198.20x = 490,808.21 × 90,521.06
  4. Step 4: Simplify right side
    327,198.20x = 44,428,478,973.30
  5. Step 5: Solve for x
    x = 44,428,478,973.30/327,198.20
  6. Step 6: Final answer
    x = 135,784.61

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1.5x scale

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.