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Finding the Fourth Proportional to 278,969.88, 384,980.67 and 151,645.17

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Solution

The fourth proportional to 278,969.88, 384,980.67 and 151,645.17 is: 209,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,969.88 : 384,980.67 = 151,645.17 : x
  2. Step 2: Convert to fraction form
    278,969.88/384,980.67 = 151,645.17/x
  3. Step 3: Cross multiply
    278,969.88x = 384,980.67 × 151,645.17
  4. Step 4: Simplify right side
    278,969.88x = 58,380,459,148.86
  5. Step 5: Solve for x
    x = 58,380,459,148.86/278,969.88
  6. Step 6: Final answer
    x = 209,271.55

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