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Finding the Fourth Proportional to 422,846.73, 634,237.01 and 119,228.63

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Solution

The fourth proportional to 422,846.73, 634,237.01 and 119,228.63 is: 178,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,846.73 : 634,237.01 = 119,228.63 : x
  2. Step 2: Convert to fraction form
    422,846.73/634,237.01 = 119,228.63/x
  3. Step 3: Cross multiply
    422,846.73x = 634,237.01 × 119,228.63
  4. Step 4: Simplify right side
    422,846.73x = 75,619,206,030.27
  5. Step 5: Solve for x
    x = 75,619,206,030.27/422,846.73
  6. Step 6: Final answer
    x = 178,833.61

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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.