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Finding the Fourth Proportional to 226,379.37, 339,306.57 and 213,257.37

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Solution

The fourth proportional to 226,379.37, 339,306.57 and 213,257.37 is: 319,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,379.37 : 339,306.57 = 213,257.37 : x
  2. Step 2: Convert to fraction form
    226,379.37/339,306.57 = 213,257.37/x
  3. Step 3: Cross multiply
    226,379.37x = 339,306.57 × 213,257.37
  4. Step 4: Simplify right side
    226,379.37x = 72,359,626,741.92
  5. Step 5: Solve for x
    x = 72,359,626,741.92/226,379.37
  6. Step 6: Final answer
    x = 319,638.78

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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.