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Finding the Fourth Proportional to 515.80, 772.86 and 323.02

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Solution

The fourth proportional to 515.80, 772.86 and 323.02 is: 484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.80 : 772.86 = 323.02 : x
  2. Step 2: Convert to fraction form
    515.80/772.86 = 323.02/x
  3. Step 3: Cross multiply
    515.80x = 772.86 × 323.02
  4. Step 4: Simplify right side
    515.80x = 249,649.24
  5. Step 5: Solve for x
    x = 249,649.24/515.80
  6. Step 6: Final answer
    x = 484.00

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