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Finding the Fourth Proportional to 365.88, 548.80 and 109.40

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Solution

The fourth proportional to 365.88, 548.80 and 109.40 is: 164.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.88 : 548.80 = 109.40 : x
  2. Step 2: Convert to fraction form
    365.88/548.80 = 109.40/x
  3. Step 3: Cross multiply
    365.88x = 548.80 × 109.40
  4. Step 4: Simplify right side
    365.88x = 60,038.72
  5. Step 5: Solve for x
    x = 60,038.72/365.88
  6. Step 6: Final answer
    x = 164.09

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