Home / 252,836.73-379,128.13-84,297.40

Finding the Fourth Proportional to 252,836.73, 379,128.13 and 84,297.40

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Solution

The fourth proportional to 252,836.73, 379,128.13 and 84,297.40 is: 126,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,836.73 : 379,128.13 = 84,297.40 : x
  2. Step 2: Convert to fraction form
    252,836.73/379,128.13 = 84,297.40/x
  3. Step 3: Cross multiply
    252,836.73x = 379,128.13 × 84,297.40
  4. Step 4: Simplify right side
    252,836.73x = 31,959,515,625.86
  5. Step 5: Solve for x
    x = 31,959,515,625.86/252,836.73
  6. Step 6: Final answer
    x = 126,403.77

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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.