Home / 327,664.02-491,687.10-138,112.80

Finding the Fourth Proportional to 327,664.02, 491,687.10 and 138,112.80

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Solution

The fourth proportional to 327,664.02, 491,687.10 and 138,112.80 is: 207,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,664.02 : 491,687.10 = 138,112.80 : x
  2. Step 2: Convert to fraction form
    327,664.02/491,687.10 = 138,112.80/x
  3. Step 3: Cross multiply
    327,664.02x = 491,687.10 × 138,112.80
  4. Step 4: Simplify right side
    327,664.02x = 67,908,282,104.88
  5. Step 5: Solve for x
    x = 67,908,282,104.88/327,664.02
  6. Step 6: Final answer
    x = 207,249.74

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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.