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Finding the Fourth Proportional to 580.81, 871.30 and 169.98

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Solution

The fourth proportional to 580.81, 871.30 and 169.98 is: 254.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.81 : 871.30 = 169.98 : x
  2. Step 2: Convert to fraction form
    580.81/871.30 = 169.98/x
  3. Step 3: Cross multiply
    580.81x = 871.30 × 169.98
  4. Step 4: Simplify right side
    580.81x = 148,102.48
  5. Step 5: Solve for x
    x = 148,102.48/580.81
  6. Step 6: Final answer
    x = 254.99

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