Home / 255,896.12-383,844.18-131,157.56

Finding the Fourth Proportional to 255,896.12, 383,844.18 and 131,157.56

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Solution

The fourth proportional to 255,896.12, 383,844.18 and 131,157.56 is: 196,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,896.12 : 383,844.18 = 131,157.56 : x
  2. Step 2: Convert to fraction form
    255,896.12/383,844.18 = 131,157.56/x
  3. Step 3: Cross multiply
    255,896.12x = 383,844.18 × 131,157.56
  4. Step 4: Simplify right side
    255,896.12x = 50,344,066,069.00
  5. Step 5: Solve for x
    x = 50,344,066,069.00/255,896.12
  6. Step 6: Final answer
    x = 196,736.34

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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.