Home / 250,631.15-345,889.31-143,198.85

Finding the Fourth Proportional to 250,631.15, 345,889.31 and 143,198.85

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Solution

The fourth proportional to 250,631.15, 345,889.31 and 143,198.85 is: 197,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,631.15 : 345,889.31 = 143,198.85 : x
  2. Step 2: Convert to fraction form
    250,631.15/345,889.31 = 143,198.85/x
  3. Step 3: Cross multiply
    250,631.15x = 345,889.31 × 143,198.85
  4. Step 4: Simplify right side
    250,631.15x = 49,530,952,000.38
  5. Step 5: Solve for x
    x = 49,530,952,000.38/250,631.15
  6. Step 6: Final answer
    x = 197,624.89

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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.