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Finding the Fourth Proportional to 327,404.80, 490,761.60 and 186,860.80

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Solution

The fourth proportional to 327,404.80, 490,761.60 and 186,860.80 is: 280,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,404.80 : 490,761.60 = 186,860.80 : x
  2. Step 2: Convert to fraction form
    327,404.80/490,761.60 = 186,860.80/x
  3. Step 3: Cross multiply
    327,404.80x = 490,761.60 × 186,860.80
  4. Step 4: Simplify right side
    327,404.80x = 91,704,105,185.28
  5. Step 5: Solve for x
    x = 91,704,105,185.28/327,404.80
  6. Step 6: Final answer
    x = 280,093.95

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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.