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Finding the Fourth Proportional to 255.61, 383.01 and 194.77

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Solution

The fourth proportional to 255.61, 383.01 and 194.77 is: 291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.61 : 383.01 = 194.77 : x
  2. Step 2: Convert to fraction form
    255.61/383.01 = 194.77/x
  3. Step 3: Cross multiply
    255.61x = 383.01 × 194.77
  4. Step 4: Simplify right side
    255.61x = 74,598.86
  5. Step 5: Solve for x
    x = 74,598.86/255.61
  6. Step 6: Final answer
    x = 291.85

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