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Finding the Fourth Proportional to 199,375.60, 298,942.94 and 79,451.00

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Solution

The fourth proportional to 199,375.60, 298,942.94 and 79,451.00 is: 119,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,375.60 : 298,942.94 = 79,451.00 : x
  2. Step 2: Convert to fraction form
    199,375.60/298,942.94 = 79,451.00/x
  3. Step 3: Cross multiply
    199,375.60x = 298,942.94 × 79,451.00
  4. Step 4: Simplify right side
    199,375.60x = 23,751,313,633.97
  5. Step 5: Solve for x
    x = 23,751,313,633.97/199,375.60
  6. Step 6: Final answer
    x = 119,128.49

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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.