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Finding the Fourth Proportional to 491,433.89, 737,149.95 and 154,503.92

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Solution

The fourth proportional to 491,433.89, 737,149.95 and 154,503.92 is: 231,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,433.89 : 737,149.95 = 154,503.92 : x
  2. Step 2: Convert to fraction form
    491,433.89/737,149.95 = 154,503.92/x
  3. Step 3: Cross multiply
    491,433.89x = 737,149.95 × 154,503.92
  4. Step 4: Simplify right side
    491,433.89x = 113,892,558,745.68
  5. Step 5: Solve for x
    x = 113,892,558,745.68/491,433.89
  6. Step 6: Final answer
    x = 231,755.61

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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.