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Finding the Fourth Proportional to 280,909.72, 387,560.45 and 159,965.26

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Solution

The fourth proportional to 280,909.72, 387,560.45 and 159,965.26 is: 220,697.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,909.72 : 387,560.45 = 159,965.26 : x
  2. Step 2: Convert to fraction form
    280,909.72/387,560.45 = 159,965.26/x
  3. Step 3: Cross multiply
    280,909.72x = 387,560.45 × 159,965.26
  4. Step 4: Simplify right side
    280,909.72x = 61,996,208,149.97
  5. Step 5: Solve for x
    x = 61,996,208,149.97/280,909.72
  6. Step 6: Final answer
    x = 220,697.98

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