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Finding the Fourth Proportional to 371.05, 556.36 and 127.45

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Solution

The fourth proportional to 371.05, 556.36 and 127.45 is: 191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.05 : 556.36 = 127.45 : x
  2. Step 2: Convert to fraction form
    371.05/556.36 = 127.45/x
  3. Step 3: Cross multiply
    371.05x = 556.36 × 127.45
  4. Step 4: Simplify right side
    371.05x = 70,908.08
  5. Step 5: Solve for x
    x = 70,908.08/371.05
  6. Step 6: Final answer
    x = 191.10

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