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Finding the Fourth Proportional to 300,930.92, 451,455.42 and 111,392.94

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Solution

The fourth proportional to 300,930.92, 451,455.42 and 111,392.94 is: 167,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,930.92 : 451,455.42 = 111,392.94 : x
  2. Step 2: Convert to fraction form
    300,930.92/451,455.42 = 111,392.94/x
  3. Step 3: Cross multiply
    300,930.92x = 451,455.42 × 111,392.94
  4. Step 4: Simplify right side
    300,930.92x = 50,288,946,512.73
  5. Step 5: Solve for x
    x = 50,288,946,512.73/300,930.92
  6. Step 6: Final answer
    x = 167,111.27

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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.