Home / 327,738.84-491,799.06-138,187.32

Finding the Fourth Proportional to 327,738.84, 491,799.06 and 138,187.32

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Solution

The fourth proportional to 327,738.84, 491,799.06 and 138,187.32 is: 207,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,738.84 : 491,799.06 = 138,187.32 : x
  2. Step 2: Convert to fraction form
    327,738.84/491,799.06 = 138,187.32/x
  3. Step 3: Cross multiply
    327,738.84x = 491,799.06 × 138,187.32
  4. Step 4: Simplify right side
    327,738.84x = 67,960,394,079.92
  5. Step 5: Solve for x
    x = 67,960,394,079.92/327,738.84
  6. Step 6: Final answer
    x = 207,361.43

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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.