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Finding the Fourth Proportional to 263,314.20, 394,315.20 and 210,826.20

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Solution

The fourth proportional to 263,314.20, 394,315.20 and 210,826.20 is: 315,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,314.20 : 394,315.20 = 210,826.20 : x
  2. Step 2: Convert to fraction form
    263,314.20/394,315.20 = 210,826.20/x
  3. Step 3: Cross multiply
    263,314.20x = 394,315.20 × 210,826.20
  4. Step 4: Simplify right side
    263,314.20x = 83,131,975,218.24
  5. Step 5: Solve for x
    x = 83,131,975,218.24/263,314.20
  6. Step 6: Final answer
    x = 315,713.98

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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.