Home / 268,821.11-403,231.11-79,414.47

Finding the Fourth Proportional to 268,821.11, 403,231.11 and 79,414.47

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Solution

The fourth proportional to 268,821.11, 403,231.11 and 79,414.47 is: 119,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,821.11 : 403,231.11 = 79,414.47 : x
  2. Step 2: Convert to fraction form
    268,821.11/403,231.11 = 79,414.47/x
  3. Step 3: Cross multiply
    268,821.11x = 403,231.11 × 79,414.47
  4. Step 4: Simplify right side
    268,821.11x = 32,022,386,201.74
  5. Step 5: Solve for x
    x = 32,022,386,201.74/268,821.11
  6. Step 6: Final answer
    x = 119,121.55

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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.