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Finding the Fourth Proportional to 203.71, 280.93 and 157

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Solution

The fourth proportional to 203.71, 280.93 and 157 is: 216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.71 : 280.93 = 157 : x
  2. Step 2: Convert to fraction form
    203.71/280.93 = 157/x
  3. Step 3: Cross multiply
    203.71x = 280.93 × 157
  4. Step 4: Simplify right side
    203.71x = 44,106.01
  5. Step 5: Solve for x
    x = 44,106.01/203.71
  6. Step 6: Final answer
    x = 216.51

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