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Finding the Fourth Proportional to 283.95, 424.85 and 155.79

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Solution

The fourth proportional to 283.95, 424.85 and 155.79 is: 233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.95 : 424.85 = 155.79 : x
  2. Step 2: Convert to fraction form
    283.95/424.85 = 155.79/x
  3. Step 3: Cross multiply
    283.95x = 424.85 × 155.79
  4. Step 4: Simplify right side
    283.95x = 66,186.60
  5. Step 5: Solve for x
    x = 66,186.60/283.95
  6. Step 6: Final answer
    x = 233.09

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