Home / 252,815.16-379,181.22-84,336.78

Finding the Fourth Proportional to 252,815.16, 379,181.22 and 84,336.78

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Solution

The fourth proportional to 252,815.16, 379,181.22 and 84,336.78 is: 126,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,815.16 : 379,181.22 = 84,336.78 : x
  2. Step 2: Convert to fraction form
    252,815.16/379,181.22 = 84,336.78/x
  3. Step 3: Cross multiply
    252,815.16x = 379,181.22 × 84,336.78
  4. Step 4: Simplify right side
    252,815.16x = 31,978,923,131.27
  5. Step 5: Solve for x
    x = 31,978,923,131.27/252,815.16
  6. Step 6: Final answer
    x = 126,491.32

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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.