Home / 320,334.62-442,022.90-177,074.78

Finding the Fourth Proportional to 320,334.62, 442,022.90 and 177,074.78

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Solution

The fourth proportional to 320,334.62, 442,022.90 and 177,074.78 is: 244,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,334.62 : 442,022.90 = 177,074.78 : x
  2. Step 2: Convert to fraction form
    320,334.62/442,022.90 = 177,074.78/x
  3. Step 3: Cross multiply
    320,334.62x = 442,022.90 × 177,074.78
  4. Step 4: Simplify right side
    320,334.62x = 78,271,104,676.97
  5. Step 5: Solve for x
    x = 78,271,104,676.97/320,334.62
  6. Step 6: Final answer
    x = 244,341.70

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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.