Home / 338,766.30-507,821.40-303,336.90

Finding the Fourth Proportional to 338,766.30, 507,821.40 and 303,336.90

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Solution

The fourth proportional to 338,766.30, 507,821.40 and 303,336.90 is: 454,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,766.30 : 507,821.40 = 303,336.90 : x
  2. Step 2: Convert to fraction form
    338,766.30/507,821.40 = 303,336.90/x
  3. Step 3: Cross multiply
    338,766.30x = 507,821.40 × 303,336.90
  4. Step 4: Simplify right side
    338,766.30x = 154,040,969,229.66
  5. Step 5: Solve for x
    x = 154,040,969,229.66/338,766.30
  6. Step 6: Final answer
    x = 454,711.61

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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.