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Finding the Fourth Proportional to 459.27, 689.12 and 185.56

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Solution

The fourth proportional to 459.27, 689.12 and 185.56 is: 278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.27 : 689.12 = 185.56 : x
  2. Step 2: Convert to fraction form
    459.27/689.12 = 185.56/x
  3. Step 3: Cross multiply
    459.27x = 689.12 × 185.56
  4. Step 4: Simplify right side
    459.27x = 127,873.11
  5. Step 5: Solve for x
    x = 127,873.11/459.27
  6. Step 6: Final answer
    x = 278.43

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