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Finding the Fourth Proportional to 293,077.20, 439,615.80 and 261,973.20

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Solution

The fourth proportional to 293,077.20, 439,615.80 and 261,973.20 is: 392,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,077.20 : 439,615.80 = 261,973.20 : x
  2. Step 2: Convert to fraction form
    293,077.20/439,615.80 = 261,973.20/x
  3. Step 3: Cross multiply
    293,077.20x = 439,615.80 × 261,973.20
  4. Step 4: Simplify right side
    293,077.20x = 115,167,557,896.56
  5. Step 5: Solve for x
    x = 115,167,557,896.56/293,077.20
  6. Step 6: Final answer
    x = 392,959.80

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