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Finding the Fourth Proportional to 202,281.89, 303,422.90 and 69,163.38

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Solution

The fourth proportional to 202,281.89, 303,422.90 and 69,163.38 is: 103,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,281.89 : 303,422.90 = 69,163.38 : x
  2. Step 2: Convert to fraction form
    202,281.89/303,422.90 = 69,163.38/x
  3. Step 3: Cross multiply
    202,281.89x = 303,422.90 × 69,163.38
  4. Step 4: Simplify right side
    202,281.89x = 20,985,752,987.59
  5. Step 5: Solve for x
    x = 20,985,752,987.59/202,281.89
  6. Step 6: Final answer
    x = 103,745.09

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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.