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Finding the Fourth Proportional to 379,653.96, 523,906.20 and 218,399.16

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Solution

The fourth proportional to 379,653.96, 523,906.20 and 218,399.16 is: 301,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,653.96 : 523,906.20 = 218,399.16 : x
  2. Step 2: Convert to fraction form
    379,653.96/523,906.20 = 218,399.16/x
  3. Step 3: Cross multiply
    379,653.96x = 523,906.20 × 218,399.16
  4. Step 4: Simplify right side
    379,653.96x = 114,420,673,998.79
  5. Step 5: Solve for x
    x = 114,420,673,998.79/379,653.96
  6. Step 6: Final answer
    x = 301,381.48

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