Home / 275,188.10-379,408.02-178,220.61

Finding the Fourth Proportional to 275,188.10, 379,408.02 and 178,220.61

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Solution

The fourth proportional to 275,188.10, 379,408.02 and 178,220.61 is: 245,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,188.10 : 379,408.02 = 178,220.61 : x
  2. Step 2: Convert to fraction form
    275,188.10/379,408.02 = 178,220.61/x
  3. Step 3: Cross multiply
    275,188.10x = 379,408.02 × 178,220.61
  4. Step 4: Simplify right side
    275,188.10x = 67,618,328,763.29
  5. Step 5: Solve for x
    x = 67,618,328,763.29/275,188.10
  6. Step 6: Final answer
    x = 245,716.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.