Home / 252,279.12-378,530.46-133,921.92

Finding the Fourth Proportional to 252,279.12, 378,530.46 and 133,921.92

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Solution

The fourth proportional to 252,279.12, 378,530.46 and 133,921.92 is: 200,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,279.12 : 378,530.46 = 133,921.92 : x
  2. Step 2: Convert to fraction form
    252,279.12/378,530.46 = 133,921.92/x
  3. Step 3: Cross multiply
    252,279.12x = 378,530.46 × 133,921.92
  4. Step 4: Simplify right side
    252,279.12x = 50,693,525,981.68
  5. Step 5: Solve for x
    x = 50,693,525,981.68/252,279.12
  6. Step 6: Final answer
    x = 200,942.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.