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Finding the Fourth Proportional to 257,552.28, 355,443.66 and 142,866.90

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Solution

The fourth proportional to 257,552.28, 355,443.66 and 142,866.90 is: 197,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,552.28 : 355,443.66 = 142,866.90 : x
  2. Step 2: Convert to fraction form
    257,552.28/355,443.66 = 142,866.90/x
  3. Step 3: Cross multiply
    257,552.28x = 355,443.66 × 142,866.90
  4. Step 4: Simplify right side
    257,552.28x = 50,781,133,828.85
  5. Step 5: Solve for x
    x = 50,781,133,828.85/257,552.28
  6. Step 6: Final answer
    x = 197,168.26

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