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Finding the Fourth Proportional to 300,879.73, 451,349.57 and 111,390.76

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Solution

The fourth proportional to 300,879.73, 451,349.57 and 111,390.76 is: 167,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,879.73 : 451,349.57 = 111,390.76 : x
  2. Step 2: Convert to fraction form
    300,879.73/451,349.57 = 111,390.76/x
  3. Step 3: Cross multiply
    300,879.73x = 451,349.57 × 111,390.76
  4. Step 4: Simplify right side
    300,879.73x = 50,276,171,627.97
  5. Step 5: Solve for x
    x = 50,276,171,627.97/300,879.73
  6. Step 6: Final answer
    x = 167,097.24

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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.