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Finding the Fourth Proportional to 280,944.88, 387,703.92 and 153,620.56

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Solution

The fourth proportional to 280,944.88, 387,703.92 and 153,620.56 is: 211,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,944.88 : 387,703.92 = 153,620.56 : x
  2. Step 2: Convert to fraction form
    280,944.88/387,703.92 = 153,620.56/x
  3. Step 3: Cross multiply
    280,944.88x = 387,703.92 × 153,620.56
  4. Step 4: Simplify right side
    280,944.88x = 59,559,293,304.60
  5. Step 5: Solve for x
    x = 59,559,293,304.60/280,944.88
  6. Step 6: Final answer
    x = 211,996.36

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