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Finding the Fourth Proportional to 259.92, 389.79 and 151.74

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Solution

The fourth proportional to 259.92, 389.79 and 151.74 is: 227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.92 : 389.79 = 151.74 : x
  2. Step 2: Convert to fraction form
    259.92/389.79 = 151.74/x
  3. Step 3: Cross multiply
    259.92x = 389.79 × 151.74
  4. Step 4: Simplify right side
    259.92x = 59,146.73
  5. Step 5: Solve for x
    x = 59,146.73/259.92
  6. Step 6: Final answer
    x = 227.56

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