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Finding the Fourth Proportional to 485,188.80, 727,653.60 and 148,228.80

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Solution

The fourth proportional to 485,188.80, 727,653.60 and 148,228.80 is: 222,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,188.80 : 727,653.60 = 148,228.80 : x
  2. Step 2: Convert to fraction form
    485,188.80/727,653.60 = 148,228.80/x
  3. Step 3: Cross multiply
    485,188.80x = 727,653.60 × 148,228.80
  4. Step 4: Simplify right side
    485,188.80x = 107,859,219,943.68
  5. Step 5: Solve for x
    x = 107,859,219,943.68/485,188.80
  6. Step 6: Final answer
    x = 222,303.61

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