Home / 320,375.26-442,100.10-177,126.76

Finding the Fourth Proportional to 320,375.26, 442,100.10 and 177,126.76

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Solution

The fourth proportional to 320,375.26, 442,100.10 and 177,126.76 is: 244,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,375.26 : 442,100.10 = 177,126.76 : x
  2. Step 2: Convert to fraction form
    320,375.26/442,100.10 = 177,126.76/x
  3. Step 3: Cross multiply
    320,375.26x = 442,100.10 × 177,126.76
  4. Step 4: Simplify right side
    320,375.26x = 78,307,758,308.68
  5. Step 5: Solve for x
    x = 78,307,758,308.68/320,375.26
  6. Step 6: Final answer
    x = 244,425.11

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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.