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Finding the Fourth Proportional to 251,961.68, 378,029.88 and 111,818.48

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Solution

The fourth proportional to 251,961.68, 378,029.88 and 111,818.48 is: 167,766.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,961.68 : 378,029.88 = 111,818.48 : x
  2. Step 2: Convert to fraction form
    251,961.68/378,029.88 = 111,818.48/x
  3. Step 3: Cross multiply
    251,961.68x = 378,029.88 × 111,818.48
  4. Step 4: Simplify right side
    251,961.68x = 42,270,726,576.18
  5. Step 5: Solve for x
    x = 42,270,726,576.18/251,961.68
  6. Step 6: Final answer
    x = 167,766.49

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