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Finding the Fourth Proportional to 257,800.48, 355,763.84 and 143,096.48

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Solution

The fourth proportional to 257,800.48, 355,763.84 and 143,096.48 is: 197,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,800.48 : 355,763.84 = 143,096.48 : x
  2. Step 2: Convert to fraction form
    257,800.48/355,763.84 = 143,096.48/x
  3. Step 3: Cross multiply
    257,800.48x = 355,763.84 × 143,096.48
  4. Step 4: Simplify right side
    257,800.48x = 50,908,553,215.28
  5. Step 5: Solve for x
    x = 50,908,553,215.28/257,800.48
  6. Step 6: Final answer
    x = 197,472.69

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