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Finding the Fourth Proportional to 494,370, 682,230.60 and 268,015.50

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Solution

The fourth proportional to 494,370, 682,230.60 and 268,015.50 is: 369,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,370 : 682,230.60 = 268,015.50 : x
  2. Step 2: Convert to fraction form
    494,370/682,230.60 = 268,015.50/x
  3. Step 3: Cross multiply
    494,370x = 682,230.60 × 268,015.50
  4. Step 4: Simplify right side
    494,370x = 182,848,375,374.30
  5. Step 5: Solve for x
    x = 182,848,375,374.30/494,370
  6. Step 6: Final answer
    x = 369,861.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.