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Finding the Fourth Proportional to 249.76, 374.76 and 146.80

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Solution

The fourth proportional to 249.76, 374.76 and 146.80 is: 220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.76 : 374.76 = 146.80 : x
  2. Step 2: Convert to fraction form
    249.76/374.76 = 146.80/x
  3. Step 3: Cross multiply
    249.76x = 374.76 × 146.80
  4. Step 4: Simplify right side
    249.76x = 55,014.77
  5. Step 5: Solve for x
    x = 55,014.77/249.76
  6. Step 6: Final answer
    x = 220.27

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