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Finding the Fourth Proportional to 475.03, 655.59 and 278.61

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Solution

The fourth proportional to 475.03, 655.59 and 278.61 is: 384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.03 : 655.59 = 278.61 : x
  2. Step 2: Convert to fraction form
    475.03/655.59 = 278.61/x
  3. Step 3: Cross multiply
    475.03x = 655.59 × 278.61
  4. Step 4: Simplify right side
    475.03x = 182,653.93
  5. Step 5: Solve for x
    x = 182,653.93/475.03
  6. Step 6: Final answer
    x = 384.51

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