Home / 377,640.20-521,100.72-222,581.36

Finding the Fourth Proportional to 377,640.20, 521,100.72 and 222,581.36

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Solution

The fourth proportional to 377,640.20, 521,100.72 and 222,581.36 is: 307,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,640.20 : 521,100.72 = 222,581.36 : x
  2. Step 2: Convert to fraction form
    377,640.20/521,100.72 = 222,581.36/x
  3. Step 3: Cross multiply
    377,640.20x = 521,100.72 × 222,581.36
  4. Step 4: Simplify right side
    377,640.20x = 115,987,306,954.58
  5. Step 5: Solve for x
    x = 115,987,306,954.58/377,640.20
  6. Step 6: Final answer
    x = 307,137.08

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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.