Home / 252,394.09-378,662.67-102,741.78

Finding the Fourth Proportional to 252,394.09, 378,662.67 and 102,741.78

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Solution

The fourth proportional to 252,394.09, 378,662.67 and 102,741.78 is: 154,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,394.09 : 378,662.67 = 102,741.78 : x
  2. Step 2: Convert to fraction form
    252,394.09/378,662.67 = 102,741.78/x
  3. Step 3: Cross multiply
    252,394.09x = 378,662.67 × 102,741.78
  4. Step 4: Simplify right side
    252,394.09x = 38,904,476,735.35
  5. Step 5: Solve for x
    x = 38,904,476,735.35/252,394.09
  6. Step 6: Final answer
    x = 154,141.79

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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.