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Finding the Fourth Proportional to 388.04, 581.90 and 171.59

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Solution

The fourth proportional to 388.04, 581.90 and 171.59 is: 257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.04 : 581.90 = 171.59 : x
  2. Step 2: Convert to fraction form
    388.04/581.90 = 171.59/x
  3. Step 3: Cross multiply
    388.04x = 581.90 × 171.59
  4. Step 4: Simplify right side
    388.04x = 99,844.45
  5. Step 5: Solve for x
    x = 99,844.45/388.04
  6. Step 6: Final answer
    x = 257.31

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