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Finding the Fourth Proportional to 546.72, 820.08 and 221.73

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Solution

The fourth proportional to 546.72, 820.08 and 221.73 is: 332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.72 : 820.08 = 221.73 : x
  2. Step 2: Convert to fraction form
    546.72/820.08 = 221.73/x
  3. Step 3: Cross multiply
    546.72x = 820.08 × 221.73
  4. Step 4: Simplify right side
    546.72x = 181,836.34
  5. Step 5: Solve for x
    x = 181,836.34/546.72
  6. Step 6: Final answer
    x = 332.60

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