Home / 263,397.28-394,935.92-103,281.38

Finding the Fourth Proportional to 263,397.28, 394,935.92 and 103,281.38

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Solution

The fourth proportional to 263,397.28, 394,935.92 and 103,281.38 is: 154,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,397.28 : 394,935.92 = 103,281.38 : x
  2. Step 2: Convert to fraction form
    263,397.28/394,935.92 = 103,281.38/x
  3. Step 3: Cross multiply
    263,397.28x = 394,935.92 × 103,281.38
  4. Step 4: Simplify right side
    263,397.28x = 40,789,524,338.08
  5. Step 5: Solve for x
    x = 40,789,524,338.08/263,397.28
  6. Step 6: Final answer
    x = 154,859.33

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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.