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Finding the Fourth Proportional to 336.92, 465.54 and 278.60

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Solution

The fourth proportional to 336.92, 465.54 and 278.60 is: 384.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.92 : 465.54 = 278.60 : x
  2. Step 2: Convert to fraction form
    336.92/465.54 = 278.60/x
  3. Step 3: Cross multiply
    336.92x = 465.54 × 278.60
  4. Step 4: Simplify right side
    336.92x = 129,700.61
  5. Step 5: Solve for x
    x = 129,700.61/336.92
  6. Step 6: Final answer
    x = 384.96

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