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Finding the Fourth Proportional to 259,957.76, 389,936.64 and 93,745.76

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Solution

The fourth proportional to 259,957.76, 389,936.64 and 93,745.76 is: 140,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,957.76 : 389,936.64 = 93,745.76 : x
  2. Step 2: Convert to fraction form
    259,957.76/389,936.64 = 93,745.76/x
  3. Step 3: Cross multiply
    259,957.76x = 389,936.64 × 93,745.76
  4. Step 4: Simplify right side
    259,957.76x = 36,554,906,668.65
  5. Step 5: Solve for x
    x = 36,554,906,668.65/259,957.76
  6. Step 6: Final answer
    x = 140,618.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.