Home / 515,414.73-772,936.86-178,363.88

Finding the Fourth Proportional to 515,414.73, 772,936.86 and 178,363.88

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Solution

The fourth proportional to 515,414.73, 772,936.86 and 178,363.88 is: 267,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,414.73 : 772,936.86 = 178,363.88 : x
  2. Step 2: Convert to fraction form
    515,414.73/772,936.86 = 178,363.88/x
  3. Step 3: Cross multiply
    515,414.73x = 772,936.86 × 178,363.88
  4. Step 4: Simplify right side
    515,414.73x = 137,864,012,588.11
  5. Step 5: Solve for x
    x = 137,864,012,588.11/515,414.73
  6. Step 6: Final answer
    x = 267,481.71

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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.