Home / 327,198.45-490,808.60-90,521.31

Finding the Fourth Proportional to 327,198.45, 490,808.60 and 90,521.31

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Solution

The fourth proportional to 327,198.45, 490,808.60 and 90,521.31 is: 135,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,198.45 : 490,808.60 = 90,521.31 : x
  2. Step 2: Convert to fraction form
    327,198.45/490,808.60 = 90,521.31/x
  3. Step 3: Cross multiply
    327,198.45x = 490,808.60 × 90,521.31
  4. Step 4: Simplify right side
    327,198.45x = 44,428,636,978.66
  5. Step 5: Solve for x
    x = 44,428,636,978.66/327,198.45
  6. Step 6: Final answer
    x = 135,784.99

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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.