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Finding the Fourth Proportional to 251.91, 377.78 and 114.93

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Solution

The fourth proportional to 251.91, 377.78 and 114.93 is: 172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.91 : 377.78 = 114.93 : x
  2. Step 2: Convert to fraction form
    251.91/377.78 = 114.93/x
  3. Step 3: Cross multiply
    251.91x = 377.78 × 114.93
  4. Step 4: Simplify right side
    251.91x = 43,417.68
  5. Step 5: Solve for x
    x = 43,417.68/251.91
  6. Step 6: Final answer
    x = 172.35

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