Home / 320,984.91-442,959.17-177,745.05

Finding the Fourth Proportional to 320,984.91, 442,959.17 and 177,745.05

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Solution

The fourth proportional to 320,984.91, 442,959.17 and 177,745.05 is: 245,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,984.91 : 442,959.17 = 177,745.05 : x
  2. Step 2: Convert to fraction form
    320,984.91/442,959.17 = 177,745.05/x
  3. Step 3: Cross multiply
    320,984.91x = 442,959.17 × 177,745.05
  4. Step 4: Simplify right side
    320,984.91x = 78,733,798,930.88
  5. Step 5: Solve for x
    x = 78,733,798,930.88/320,984.91
  6. Step 6: Final answer
    x = 245,288.16

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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.