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Finding the Fourth Proportional to 380,742.80, 570,610.20 and 202,866.80

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Solution

The fourth proportional to 380,742.80, 570,610.20 and 202,866.80 is: 304,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,742.80 : 570,610.20 = 202,866.80 : x
  2. Step 2: Convert to fraction form
    380,742.80/570,610.20 = 202,866.80/x
  3. Step 3: Cross multiply
    380,742.80x = 570,610.20 × 202,866.80
  4. Step 4: Simplify right side
    380,742.80x = 115,757,865,321.36
  5. Step 5: Solve for x
    x = 115,757,865,321.36/380,742.80
  6. Step 6: Final answer
    x = 304,031.66

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