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Finding the Fourth Proportional to 278,885.85, 384,865.46 and 151,561.45

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Solution

The fourth proportional to 278,885.85, 384,865.46 and 151,561.45 is: 209,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,885.85 : 384,865.46 = 151,561.45 : x
  2. Step 2: Convert to fraction form
    278,885.85/384,865.46 = 151,561.45/x
  3. Step 3: Cross multiply
    278,885.85x = 384,865.46 × 151,561.45
  4. Step 4: Simplify right side
    278,885.85x = 58,330,767,172.52
  5. Step 5: Solve for x
    x = 58,330,767,172.52/278,885.85
  6. Step 6: Final answer
    x = 209,156.42

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