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Finding the Fourth Proportional to 251,162.06, 376,713.24 and 82,640.60

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Solution

The fourth proportional to 251,162.06, 376,713.24 and 82,640.60 is: 123,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,162.06 : 376,713.24 = 82,640.60 : x
  2. Step 2: Convert to fraction form
    251,162.06/376,713.24 = 82,640.60/x
  3. Step 3: Cross multiply
    251,162.06x = 376,713.24 × 82,640.60
  4. Step 4: Simplify right side
    251,162.06x = 31,131,808,181.54
  5. Step 5: Solve for x
    x = 31,131,808,181.54/251,162.06
  6. Step 6: Final answer
    x = 123,951.08

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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.