Home / 256,190.85-384,278.04-115,949.61

Finding the Fourth Proportional to 256,190.85, 384,278.04 and 115,949.61

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Solution

The fourth proportional to 256,190.85, 384,278.04 and 115,949.61 is: 173,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,190.85 : 384,278.04 = 115,949.61 : x
  2. Step 2: Convert to fraction form
    256,190.85/384,278.04 = 115,949.61/x
  3. Step 3: Cross multiply
    256,190.85x = 384,278.04 × 115,949.61
  4. Step 4: Simplify right side
    256,190.85x = 44,556,888,869.56
  5. Step 5: Solve for x
    x = 44,556,888,869.56/256,190.85
  6. Step 6: Final answer
    x = 173,920.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.