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Finding the Fourth Proportional to 270,648.80, 406,030.80 and 83,679.20

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Solution

The fourth proportional to 270,648.80, 406,030.80 and 83,679.20 is: 125,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,648.80 : 406,030.80 = 83,679.20 : x
  2. Step 2: Convert to fraction form
    270,648.80/406,030.80 = 83,679.20/x
  3. Step 3: Cross multiply
    270,648.80x = 406,030.80 × 83,679.20
  4. Step 4: Simplify right side
    270,648.80x = 33,976,332,519.36
  5. Step 5: Solve for x
    x = 33,976,332,519.36/270,648.80
  6. Step 6: Final answer
    x = 125,536.61

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