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Finding the Fourth Proportional to 325.61, 488.64 and 203.96

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Solution

The fourth proportional to 325.61, 488.64 and 203.96 is: 306.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.61 : 488.64 = 203.96 : x
  2. Step 2: Convert to fraction form
    325.61/488.64 = 203.96/x
  3. Step 3: Cross multiply
    325.61x = 488.64 × 203.96
  4. Step 4: Simplify right side
    325.61x = 99,663.01
  5. Step 5: Solve for x
    x = 99,663.01/325.61
  6. Step 6: Final answer
    x = 306.08

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