Home / 298,821.12-412,212.96-191,275.44

Finding the Fourth Proportional to 298,821.12, 412,212.96 and 191,275.44

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Solution

The fourth proportional to 298,821.12, 412,212.96 and 191,275.44 is: 263,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,821.12 : 412,212.96 = 191,275.44 : x
  2. Step 2: Convert to fraction form
    298,821.12/412,212.96 = 191,275.44/x
  3. Step 3: Cross multiply
    298,821.12x = 412,212.96 × 191,275.44
  4. Step 4: Simplify right side
    298,821.12x = 78,846,215,297.70
  5. Step 5: Solve for x
    x = 78,846,215,297.70/298,821.12
  6. Step 6: Final answer
    x = 263,857.57

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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.