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Finding the Fourth Proportional to 257,715.20, 355,658.95 and 160,976.33

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Solution

The fourth proportional to 257,715.20, 355,658.95 and 160,976.33 is: 222,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,715.20 : 355,658.95 = 160,976.33 : x
  2. Step 2: Convert to fraction form
    257,715.20/355,658.95 = 160,976.33/x
  3. Step 3: Cross multiply
    257,715.20x = 355,658.95 × 160,976.33
  4. Step 4: Simplify right side
    257,715.20x = 57,252,672,502.65
  5. Step 5: Solve for x
    x = 57,252,672,502.65/257,715.20
  6. Step 6: Final answer
    x = 222,154.81

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