Home / 327,660.63-491,682.03-138,109.41

Finding the Fourth Proportional to 327,660.63, 491,682.03 and 138,109.41

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Solution

The fourth proportional to 327,660.63, 491,682.03 and 138,109.41 is: 207,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,660.63 : 491,682.03 = 138,109.41 : x
  2. Step 2: Convert to fraction form
    327,660.63/491,682.03 = 138,109.41/x
  3. Step 3: Cross multiply
    327,660.63x = 491,682.03 × 138,109.41
  4. Step 4: Simplify right side
    327,660.63x = 67,905,915,070.90
  5. Step 5: Solve for x
    x = 67,905,915,070.90/327,660.63
  6. Step 6: Final answer
    x = 207,244.66

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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.