Home / 320,613.80-442,422.66-177,370.78

Finding the Fourth Proportional to 320,613.80, 442,422.66 and 177,370.78

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Solution

The fourth proportional to 320,613.80, 442,422.66 and 177,370.78 is: 244,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,613.80 : 442,422.66 = 177,370.78 : x
  2. Step 2: Convert to fraction form
    320,613.80/442,422.66 = 177,370.78/x
  3. Step 3: Cross multiply
    320,613.80x = 442,422.66 × 177,370.78
  4. Step 4: Simplify right side
    320,613.80x = 78,472,852,293.87
  5. Step 5: Solve for x
    x = 78,472,852,293.87/320,613.80
  6. Step 6: Final answer
    x = 244,758.19

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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.