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Finding the Fourth Proportional to 228,568, 342,785.81 and 68,637.48

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Solution

The fourth proportional to 228,568, 342,785.81 and 68,637.48 is: 102,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,568 : 342,785.81 = 68,637.48 : x
  2. Step 2: Convert to fraction form
    228,568/342,785.81 = 68,637.48/x
  3. Step 3: Cross multiply
    228,568x = 342,785.81 × 68,637.48
  4. Step 4: Simplify right side
    228,568x = 23,527,952,121.04
  5. Step 5: Solve for x
    x = 23,527,952,121.04/228,568
  6. Step 6: Final answer
    x = 102,936.33

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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.