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Finding the Fourth Proportional to 251.77, 377.59 and 69.15

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Solution

The fourth proportional to 251.77, 377.59 and 69.15 is: 103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.77 : 377.59 = 69.15 : x
  2. Step 2: Convert to fraction form
    251.77/377.59 = 69.15/x
  3. Step 3: Cross multiply
    251.77x = 377.59 × 69.15
  4. Step 4: Simplify right side
    251.77x = 26,110.35
  5. Step 5: Solve for x
    x = 26,110.35/251.77
  6. Step 6: Final answer
    x = 103.71

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