Home / 331,286.92-457,279.14-188,142.28

Finding the Fourth Proportional to 331,286.92, 457,279.14 and 188,142.28

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Solution

The fourth proportional to 331,286.92, 457,279.14 and 188,142.28 is: 259,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,286.92 : 457,279.14 = 188,142.28 : x
  2. Step 2: Convert to fraction form
    331,286.92/457,279.14 = 188,142.28/x
  3. Step 3: Cross multiply
    331,286.92x = 457,279.14 × 188,142.28
  4. Step 4: Simplify right side
    331,286.92x = 86,033,539,996.04
  5. Step 5: Solve for x
    x = 86,033,539,996.04/331,286.92
  6. Step 6: Final answer
    x = 259,694.95

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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.