Home / 320,436.88-442,205.78-177,206.56

Finding the Fourth Proportional to 320,436.88, 442,205.78 and 177,206.56

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Solution

The fourth proportional to 320,436.88, 442,205.78 and 177,206.56 is: 244,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436.88 : 442,205.78 = 177,206.56 : x
  2. Step 2: Convert to fraction form
    320,436.88/442,205.78 = 177,206.56/x
  3. Step 3: Cross multiply
    320,436.88x = 442,205.78 × 177,206.56
  4. Step 4: Simplify right side
    320,436.88x = 78,361,765,085.92
  5. Step 5: Solve for x
    x = 78,361,765,085.92/320,436.88
  6. Step 6: Final answer
    x = 244,546.65

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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.