Home / 275,198.11-379,421.82-178,230.65

Finding the Fourth Proportional to 275,198.11, 379,421.82 and 178,230.65

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Solution

The fourth proportional to 275,198.11, 379,421.82 and 178,230.65 is: 245,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,198.11 : 379,421.82 = 178,230.65 : x
  2. Step 2: Convert to fraction form
    275,198.11/379,421.82 = 178,230.65/x
  3. Step 3: Cross multiply
    275,198.11x = 379,421.82 × 178,230.65
  4. Step 4: Simplify right side
    275,198.11x = 67,624,595,705.67
  5. Step 5: Solve for x
    x = 67,624,595,705.67/275,198.11
  6. Step 6: Final answer
    x = 245,730.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.