Home / 255,919.12-383,878.72-131,180.56

Finding the Fourth Proportional to 255,919.12, 383,878.72 and 131,180.56

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Solution

The fourth proportional to 255,919.12, 383,878.72 and 131,180.56 is: 196,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,919.12 : 383,878.72 = 131,180.56 : x
  2. Step 2: Convert to fraction form
    255,919.12/383,878.72 = 131,180.56/x
  3. Step 3: Cross multiply
    255,919.12x = 383,878.72 × 131,180.56
  4. Step 4: Simplify right side
    255,919.12x = 50,357,425,461.68
  5. Step 5: Solve for x
    x = 50,357,425,461.68/255,919.12
  6. Step 6: Final answer
    x = 196,770.86

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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.