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Finding the Fourth Proportional to 100,331.91, 150,506.07 and 50,386.29

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Solution

The fourth proportional to 100,331.91, 150,506.07 and 50,386.29 is: 75,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,331.91 : 150,506.07 = 50,386.29 : x
  2. Step 2: Convert to fraction form
    100,331.91/150,506.07 = 50,386.29/x
  3. Step 3: Cross multiply
    100,331.91x = 150,506.07 × 50,386.29
  4. Step 4: Simplify right side
    100,331.91x = 7,583,442,489.78
  5. Step 5: Solve for x
    x = 7,583,442,489.78/100,331.91
  6. Step 6: Final answer
    x = 75,583.56

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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.