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Finding the Fourth Proportional to 540.82, 811.23 and 359.03

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Solution

The fourth proportional to 540.82, 811.23 and 359.03 is: 538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.82 : 811.23 = 359.03 : x
  2. Step 2: Convert to fraction form
    540.82/811.23 = 359.03/x
  3. Step 3: Cross multiply
    540.82x = 811.23 × 359.03
  4. Step 4: Simplify right side
    540.82x = 291,255.91
  5. Step 5: Solve for x
    x = 291,255.91/540.82
  6. Step 6: Final answer
    x = 538.55

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