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Finding the Fourth Proportional to 418.44, 577.50 and 243.84

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Solution

The fourth proportional to 418.44, 577.50 and 243.84 is: 336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.44 : 577.50 = 243.84 : x
  2. Step 2: Convert to fraction form
    418.44/577.50 = 243.84/x
  3. Step 3: Cross multiply
    418.44x = 577.50 × 243.84
  4. Step 4: Simplify right side
    418.44x = 140,817.60
  5. Step 5: Solve for x
    x = 140,817.60/418.44
  6. Step 6: Final answer
    x = 336.53

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