Home / 320,343.63-442,083.42-177,112.88

Finding the Fourth Proportional to 320,343.63, 442,083.42 and 177,112.88

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Solution

The fourth proportional to 320,343.63, 442,083.42 and 177,112.88 is: 244,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,343.63 : 442,083.42 = 177,112.88 : x
  2. Step 2: Convert to fraction form
    320,343.63/442,083.42 = 177,112.88/x
  3. Step 3: Cross multiply
    320,343.63x = 442,083.42 × 177,112.88
  4. Step 4: Simplify right side
    320,343.63x = 78,298,667,163.85
  5. Step 5: Solve for x
    x = 78,298,667,163.85/320,343.63
  6. Step 6: Final answer
    x = 244,420.87

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1.5x scale

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.