Home / 263,306.42-394,884.23-85,828.94

Finding the Fourth Proportional to 263,306.42, 394,884.23 and 85,828.94

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Solution

The fourth proportional to 263,306.42, 394,884.23 and 85,828.94 is: 128,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,306.42 : 394,884.23 = 85,828.94 : x
  2. Step 2: Convert to fraction form
    263,306.42/394,884.23 = 85,828.94/x
  3. Step 3: Cross multiply
    263,306.42x = 394,884.23 × 85,828.94
  4. Step 4: Simplify right side
    263,306.42x = 33,892,492,480.05
  5. Step 5: Solve for x
    x = 33,892,492,480.05/263,306.42
  6. Step 6: Final answer
    x = 128,718.83

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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.