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Finding the Fourth Proportional to 175.78, 263.43 and 73

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Solution

The fourth proportional to 175.78, 263.43 and 73 is: 109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.78 : 263.43 = 73 : x
  2. Step 2: Convert to fraction form
    175.78/263.43 = 73/x
  3. Step 3: Cross multiply
    175.78x = 263.43 × 73
  4. Step 4: Simplify right side
    175.78x = 19,230.39
  5. Step 5: Solve for x
    x = 19,230.39/175.78
  6. Step 6: Final answer
    x = 109.40

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