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Finding the Fourth Proportional to 250,399.26, 375,616.20 and 100,639.68

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Solution

The fourth proportional to 250,399.26, 375,616.20 and 100,639.68 is: 150,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,399.26 : 375,616.20 = 100,639.68 : x
  2. Step 2: Convert to fraction form
    250,399.26/375,616.20 = 100,639.68/x
  3. Step 3: Cross multiply
    250,399.26x = 375,616.20 × 100,639.68
  4. Step 4: Simplify right side
    250,399.26x = 37,801,894,170.82
  5. Step 5: Solve for x
    x = 37,801,894,170.82/250,399.26
  6. Step 6: Final answer
    x = 150,966.48

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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.