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Finding the Fourth Proportional to 278,678.52, 384,579.18 and 151,356.60

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Solution

The fourth proportional to 278,678.52, 384,579.18 and 151,356.60 is: 208,873.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,678.52 : 384,579.18 = 151,356.60 : x
  2. Step 2: Convert to fraction form
    278,678.52/384,579.18 = 151,356.60/x
  3. Step 3: Cross multiply
    278,678.52x = 384,579.18 × 151,356.60
  4. Step 4: Simplify right side
    278,678.52x = 58,208,597,115.59
  5. Step 5: Solve for x
    x = 58,208,597,115.59/278,678.52
  6. Step 6: Final answer
    x = 208,873.64

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