Home / 327,660.96-491,668.01-138,252.60

Finding the Fourth Proportional to 327,660.96, 491,668.01 and 138,252.60

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Solution

The fourth proportional to 327,660.96, 491,668.01 and 138,252.60 is: 207,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,660.96 : 491,668.01 = 138,252.60 : x
  2. Step 2: Convert to fraction form
    327,660.96/491,668.01 = 138,252.60/x
  3. Step 3: Cross multiply
    327,660.96x = 491,668.01 × 138,252.60
  4. Step 4: Simplify right side
    327,660.96x = 67,974,380,719.33
  5. Step 5: Solve for x
    x = 67,974,380,719.33/327,660.96
  6. Step 6: Final answer
    x = 207,453.40

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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.