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Finding the Fourth Proportional to 199,135.61, 298,472.30 and 80,659.61

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Solution

The fourth proportional to 199,135.61, 298,472.30 and 80,659.61 is: 120,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,135.61 : 298,472.30 = 80,659.61 : x
  2. Step 2: Convert to fraction form
    199,135.61/298,472.30 = 80,659.61/x
  3. Step 3: Cross multiply
    199,135.61x = 298,472.30 × 80,659.61
  4. Step 4: Simplify right side
    199,135.61x = 24,074,658,910.50
  5. Step 5: Solve for x
    x = 24,074,658,910.50/199,135.61
  6. Step 6: Final answer
    x = 120,895.80

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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.