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Finding the Fourth Proportional to 339,938.20, 510,198.90 and 150,689.80

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Solution

The fourth proportional to 339,938.20, 510,198.90 and 150,689.80 is: 226,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,938.20 : 510,198.90 = 150,689.80 : x
  2. Step 2: Convert to fraction form
    339,938.20/510,198.90 = 150,689.80/x
  3. Step 3: Cross multiply
    339,938.20x = 510,198.90 × 150,689.80
  4. Step 4: Simplify right side
    339,938.20x = 76,881,770,201.22
  5. Step 5: Solve for x
    x = 76,881,770,201.22/339,938.20
  6. Step 6: Final answer
    x = 226,163.96

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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.