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Finding the Fourth Proportional to 403.03, 604.45 and 186.40

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Solution

The fourth proportional to 403.03, 604.45 and 186.40 is: 279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.03 : 604.45 = 186.40 : x
  2. Step 2: Convert to fraction form
    403.03/604.45 = 186.40/x
  3. Step 3: Cross multiply
    403.03x = 604.45 × 186.40
  4. Step 4: Simplify right side
    403.03x = 112,665.53
  5. Step 5: Solve for x
    x = 112,665.53/403.03
  6. Step 6: Final answer
    x = 279.55

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