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Finding the Fourth Proportional to 603.08, 904.26 and 278

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Solution

The fourth proportional to 603.08, 904.26 and 278 is: 416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.08 : 904.26 = 278 : x
  2. Step 2: Convert to fraction form
    603.08/904.26 = 278/x
  3. Step 3: Cross multiply
    603.08x = 904.26 × 278
  4. Step 4: Simplify right side
    603.08x = 251,384.28
  5. Step 5: Solve for x
    x = 251,384.28/603.08
  6. Step 6: Final answer
    x = 416.83

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