Home / 263,396.41-394,934.61-103,280.51

Finding the Fourth Proportional to 263,396.41, 394,934.61 and 103,280.51

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Solution

The fourth proportional to 263,396.41, 394,934.61 and 103,280.51 is: 154,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,396.41 : 394,934.61 = 103,280.51 : x
  2. Step 2: Convert to fraction form
    263,396.41/394,934.61 = 103,280.51/x
  3. Step 3: Cross multiply
    263,396.41x = 394,934.61 × 103,280.51
  4. Step 4: Simplify right side
    263,396.41x = 40,789,046,950.11
  5. Step 5: Solve for x
    x = 40,789,046,950.11/263,396.41
  6. Step 6: Final answer
    x = 154,858.02

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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.