Home / 327,497.09-491,245.61-90,839.78

Finding the Fourth Proportional to 327,497.09, 491,245.61 and 90,839.78

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Solution

The fourth proportional to 327,497.09, 491,245.61 and 90,839.78 is: 136,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,497.09 : 491,245.61 = 90,839.78 : x
  2. Step 2: Convert to fraction form
    327,497.09/491,245.61 = 90,839.78/x
  3. Step 3: Cross multiply
    327,497.09x = 491,245.61 × 90,839.78
  4. Step 4: Simplify right side
    327,497.09x = 44,624,642,684.17
  5. Step 5: Solve for x
    x = 44,624,642,684.17/327,497.09
  6. Step 6: Final answer
    x = 136,259.66

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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.