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Finding the Fourth Proportional to 263,400.40, 394,517.40 and 216,744.40

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Solution

The fourth proportional to 263,400.40, 394,517.40 and 216,744.40 is: 324,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,400.40 : 394,517.40 = 216,744.40 : x
  2. Step 2: Convert to fraction form
    263,400.40/394,517.40 = 216,744.40/x
  3. Step 3: Cross multiply
    263,400.40x = 394,517.40 × 216,744.40
  4. Step 4: Simplify right side
    263,400.40x = 85,509,437,152.56
  5. Step 5: Solve for x
    x = 85,509,437,152.56/263,400.40
  6. Step 6: Final answer
    x = 324,636.70

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1.5x scale

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.