Home / 377,540.12-521,107.72-222,626.71

Finding the Fourth Proportional to 377,540.12, 521,107.72 and 222,626.71

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Solution

The fourth proportional to 377,540.12, 521,107.72 and 222,626.71 is: 307,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,540.12 : 521,107.72 = 222,626.71 : x
  2. Step 2: Convert to fraction form
    377,540.12/521,107.72 = 222,626.71/x
  3. Step 3: Cross multiply
    377,540.12x = 521,107.72 × 222,626.71
  4. Step 4: Simplify right side
    377,540.12x = 116,012,497,259.20
  5. Step 5: Solve for x
    x = 116,012,497,259.20/377,540.12
  6. Step 6: Final answer
    x = 307,285.22

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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.