Home / 215,144.65-322,714.91-130,928.75

Finding the Fourth Proportional to 215,144.65, 322,714.91 and 130,928.75

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Solution

The fourth proportional to 215,144.65, 322,714.91 and 130,928.75 is: 196,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,144.65 : 322,714.91 = 130,928.75 : x
  2. Step 2: Convert to fraction form
    215,144.65/322,714.91 = 130,928.75/x
  3. Step 3: Cross multiply
    215,144.65x = 322,714.91 × 130,928.75
  4. Step 4: Simplify right side
    215,144.65x = 42,252,659,772.66
  5. Step 5: Solve for x
    x = 42,252,659,772.66/215,144.65
  6. Step 6: Final answer
    x = 196,391.87

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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.