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Finding the Fourth Proportional to 256.22, 384.06 and 183.86

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Solution

The fourth proportional to 256.22, 384.06 and 183.86 is: 275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.22 : 384.06 = 183.86 : x
  2. Step 2: Convert to fraction form
    256.22/384.06 = 183.86/x
  3. Step 3: Cross multiply
    256.22x = 384.06 × 183.86
  4. Step 4: Simplify right side
    256.22x = 70,613.27
  5. Step 5: Solve for x
    x = 70,613.27/256.22
  6. Step 6: Final answer
    x = 275.60

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