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Finding the Fourth Proportional to 227,633.20, 340,672.20 and 199,639.60

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Solution

The fourth proportional to 227,633.20, 340,672.20 and 199,639.60 is: 298,777.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,633.20 : 340,672.20 = 199,639.60 : x
  2. Step 2: Convert to fraction form
    227,633.20/340,672.20 = 199,639.60/x
  3. Step 3: Cross multiply
    227,633.20x = 340,672.20 × 199,639.60
  4. Step 4: Simplify right side
    227,633.20x = 68,011,661,739.12
  5. Step 5: Solve for x
    x = 68,011,661,739.12/227,633.20
  6. Step 6: Final answer
    x = 298,777.43

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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.