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Finding the Fourth Proportional to 199,418.08, 298,866.84 and 80,950.72

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Solution

The fourth proportional to 199,418.08, 298,866.84 and 80,950.72 is: 121,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,418.08 : 298,866.84 = 80,950.72 : x
  2. Step 2: Convert to fraction form
    199,418.08/298,866.84 = 80,950.72/x
  3. Step 3: Cross multiply
    199,418.08x = 298,866.84 × 80,950.72
  4. Step 4: Simplify right side
    199,418.08x = 24,193,485,882.12
  5. Step 5: Solve for x
    x = 24,193,485,882.12/199,418.08
  6. Step 6: Final answer
    x = 121,320.42

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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.