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Finding the Fourth Proportional to 397,285.75, 548,254.43 and 218,437.75

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Solution

The fourth proportional to 397,285.75, 548,254.43 and 218,437.75 is: 301,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,285.75 : 548,254.43 = 218,437.75 : x
  2. Step 2: Convert to fraction form
    397,285.75/548,254.43 = 218,437.75/x
  3. Step 3: Cross multiply
    397,285.75x = 548,254.43 × 218,437.75
  4. Step 4: Simplify right side
    397,285.75x = 119,759,464,116.73
  5. Step 5: Solve for x
    x = 119,759,464,116.73/397,285.75
  6. Step 6: Final answer
    x = 301,444.15

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