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Finding the Fourth Proportional to 278,760.95, 384,690.57 and 151,436.65

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Solution

The fourth proportional to 278,760.95, 384,690.57 and 151,436.65 is: 208,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,760.95 : 384,690.57 = 151,436.65 : x
  2. Step 2: Convert to fraction form
    278,760.95/384,690.57 = 151,436.65/x
  3. Step 3: Cross multiply
    278,760.95x = 384,690.57 × 151,436.65
  4. Step 4: Simplify right side
    278,760.95x = 58,256,251,207.39
  5. Step 5: Solve for x
    x = 58,256,251,207.39/278,760.95
  6. Step 6: Final answer
    x = 208,982.83

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