Home / 320,608.82-442,453.20-177,366.40

Finding the Fourth Proportional to 320,608.82, 442,453.20 and 177,366.40

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Solution

The fourth proportional to 320,608.82, 442,453.20 and 177,366.40 is: 244,772.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,608.82 : 442,453.20 = 177,366.40 : x
  2. Step 2: Convert to fraction form
    320,608.82/442,453.20 = 177,366.40/x
  3. Step 3: Cross multiply
    320,608.82x = 442,453.20 × 177,366.40
  4. Step 4: Simplify right side
    320,608.82x = 78,476,331,252.48
  5. Step 5: Solve for x
    x = 78,476,331,252.48/320,608.82
  6. Step 6: Final answer
    x = 244,772.84

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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.