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Finding the Fourth Proportional to 464.31, 696.53 and 220.82

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Solution

The fourth proportional to 464.31, 696.53 and 220.82 is: 331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.31 : 696.53 = 220.82 : x
  2. Step 2: Convert to fraction form
    464.31/696.53 = 220.82/x
  3. Step 3: Cross multiply
    464.31x = 696.53 × 220.82
  4. Step 4: Simplify right side
    464.31x = 153,804.82
  5. Step 5: Solve for x
    x = 153,804.82/464.31
  6. Step 6: Final answer
    x = 331.25

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