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Finding the Fourth Proportional to 380,986.64, 525,735.88 and 219,848.40

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Solution

The fourth proportional to 380,986.64, 525,735.88 and 219,848.40 is: 303,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,986.64 : 525,735.88 = 219,848.40 : x
  2. Step 2: Convert to fraction form
    380,986.64/525,735.88 = 219,848.40/x
  3. Step 3: Cross multiply
    380,986.64x = 525,735.88 × 219,848.40
  4. Step 4: Simplify right side
    380,986.64x = 115,582,192,040.59
  5. Step 5: Solve for x
    x = 115,582,192,040.59/380,986.64
  6. Step 6: Final answer
    x = 303,375.97

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