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Finding the Fourth Proportional to 277.08, 415.70 and 155.43

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Solution

The fourth proportional to 277.08, 415.70 and 155.43 is: 233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.08 : 415.70 = 155.43 : x
  2. Step 2: Convert to fraction form
    277.08/415.70 = 155.43/x
  3. Step 3: Cross multiply
    277.08x = 415.70 × 155.43
  4. Step 4: Simplify right side
    277.08x = 64,611.47
  5. Step 5: Solve for x
    x = 64,611.47/277.08
  6. Step 6: Final answer
    x = 233.19

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