Home / 253,914.30-381,036.60-109,960.72

Finding the Fourth Proportional to 253,914.30, 381,036.60 and 109,960.72

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Solution

The fourth proportional to 253,914.30, 381,036.60 and 109,960.72 is: 165,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,914.30 : 381,036.60 = 109,960.72 : x
  2. Step 2: Convert to fraction form
    253,914.30/381,036.60 = 109,960.72/x
  3. Step 3: Cross multiply
    253,914.30x = 381,036.60 × 109,960.72
  4. Step 4: Simplify right side
    253,914.30x = 41,899,057,929.76
  5. Step 5: Solve for x
    x = 41,899,057,929.76/253,914.30
  6. Step 6: Final answer
    x = 165,012.60

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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.