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Finding the Fourth Proportional to 515.93, 773.18 and 284.93

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Solution

The fourth proportional to 515.93, 773.18 and 284.93 is: 427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.93 : 773.18 = 284.93 : x
  2. Step 2: Convert to fraction form
    515.93/773.18 = 284.93/x
  3. Step 3: Cross multiply
    515.93x = 773.18 × 284.93
  4. Step 4: Simplify right side
    515.93x = 220,302.18
  5. Step 5: Solve for x
    x = 220,302.18/515.93
  6. Step 6: Final answer
    x = 427.00

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