Home / 320,458.28-442,240.97-177,223.55

Finding the Fourth Proportional to 320,458.28, 442,240.97 and 177,223.55

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Solution

The fourth proportional to 320,458.28, 442,240.97 and 177,223.55 is: 244,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,458.28 : 442,240.97 = 177,223.55 : x
  2. Step 2: Convert to fraction form
    320,458.28/442,240.97 = 177,223.55/x
  3. Step 3: Cross multiply
    320,458.28x = 442,240.97 × 177,223.55
  4. Step 4: Simplify right side
    320,458.28x = 78,375,511,561.52
  5. Step 5: Solve for x
    x = 78,375,511,561.52/320,458.28
  6. Step 6: Final answer
    x = 244,573.22

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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.