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Finding the Fourth Proportional to 304.32, 454.50 and 278.82

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Solution

The fourth proportional to 304.32, 454.50 and 278.82 is: 416.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.32 : 454.50 = 278.82 : x
  2. Step 2: Convert to fraction form
    304.32/454.50 = 278.82/x
  3. Step 3: Cross multiply
    304.32x = 454.50 × 278.82
  4. Step 4: Simplify right side
    304.32x = 126,723.69
  5. Step 5: Solve for x
    x = 126,723.69/304.32
  6. Step 6: Final answer
    x = 416.42

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