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Finding the Fourth Proportional to 278,478.20, 384,234.03 and 157,619.47

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Solution

The fourth proportional to 278,478.20, 384,234.03 and 157,619.47 is: 217,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,478.20 : 384,234.03 = 157,619.47 : x
  2. Step 2: Convert to fraction form
    278,478.20/384,234.03 = 157,619.47/x
  3. Step 3: Cross multiply
    278,478.20x = 384,234.03 × 157,619.47
  4. Step 4: Simplify right side
    278,478.20x = 60,562,763,924.42
  5. Step 5: Solve for x
    x = 60,562,763,924.42/278,478.20
  6. Step 6: Final answer
    x = 217,477.57

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