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Finding the Fourth Proportional to 370,331.94, 511,089.54 and 209,216.55

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Solution

The fourth proportional to 370,331.94, 511,089.54 and 209,216.55 is: 288,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,331.94 : 511,089.54 = 209,216.55 : x
  2. Step 2: Convert to fraction form
    370,331.94/511,089.54 = 209,216.55/x
  3. Step 3: Cross multiply
    370,331.94x = 511,089.54 × 209,216.55
  4. Step 4: Simplify right side
    370,331.94x = 106,928,390,299.89
  5. Step 5: Solve for x
    x = 106,928,390,299.89/370,331.94
  6. Step 6: Final answer
    x = 288,736.61

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