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Finding the Fourth Proportional to 513.01, 707.97 and 291.99

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Solution

The fourth proportional to 513.01, 707.97 and 291.99 is: 402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.01 : 707.97 = 291.99 : x
  2. Step 2: Convert to fraction form
    513.01/707.97 = 291.99/x
  3. Step 3: Cross multiply
    513.01x = 707.97 × 291.99
  4. Step 4: Simplify right side
    513.01x = 206,718.70
  5. Step 5: Solve for x
    x = 206,718.70/513.01
  6. Step 6: Final answer
    x = 402.96

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