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Finding the Fourth Proportional to 519.48, 779.16 and 134.72

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Solution

The fourth proportional to 519.48, 779.16 and 134.72 is: 202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.48 : 779.16 = 134.72 : x
  2. Step 2: Convert to fraction form
    519.48/779.16 = 134.72/x
  3. Step 3: Cross multiply
    519.48x = 779.16 × 134.72
  4. Step 4: Simplify right side
    519.48x = 104,968.44
  5. Step 5: Solve for x
    x = 104,968.44/519.48
  6. Step 6: Final answer
    x = 202.06

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