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Finding the Fourth Proportional to 533.31, 800.16 and 208.89

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Solution

The fourth proportional to 533.31, 800.16 and 208.89 is: 313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.31 : 800.16 = 208.89 : x
  2. Step 2: Convert to fraction form
    533.31/800.16 = 208.89/x
  3. Step 3: Cross multiply
    533.31x = 800.16 × 208.89
  4. Step 4: Simplify right side
    533.31x = 167,145.42
  5. Step 5: Solve for x
    x = 167,145.42/533.31
  6. Step 6: Final answer
    x = 313.41

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