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Finding the Fourth Proportional to 365.25, 548.15 and 172.88

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Solution

The fourth proportional to 365.25, 548.15 and 172.88 is: 259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.25 : 548.15 = 172.88 : x
  2. Step 2: Convert to fraction form
    365.25/548.15 = 172.88/x
  3. Step 3: Cross multiply
    365.25x = 548.15 × 172.88
  4. Step 4: Simplify right side
    365.25x = 94,760.57
  5. Step 5: Solve for x
    x = 94,760.57/365.25
  6. Step 6: Final answer
    x = 259.44

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