Home / 274,536.12-378,791.34-161,336.76

Finding the Fourth Proportional to 274,536.12, 378,791.34 and 161,336.76

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Solution

The fourth proportional to 274,536.12, 378,791.34 and 161,336.76 is: 222,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,536.12 : 378,791.34 = 161,336.76 : x
  2. Step 2: Convert to fraction form
    274,536.12/378,791.34 = 161,336.76/x
  3. Step 3: Cross multiply
    274,536.12x = 378,791.34 × 161,336.76
  4. Step 4: Simplify right side
    274,536.12x = 61,112,967,511.66
  5. Step 5: Solve for x
    x = 61,112,967,511.66/274,536.12
  6. Step 6: Final answer
    x = 222,604.47

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1.5x scale

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.