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Finding the Fourth Proportional to 199,200.90, 298,794.15 and 80,868.90

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Solution

The fourth proportional to 199,200.90, 298,794.15 and 80,868.90 is: 121,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,200.90 : 298,794.15 = 80,868.90 : x
  2. Step 2: Convert to fraction form
    199,200.90/298,794.15 = 80,868.90/x
  3. Step 3: Cross multiply
    199,200.90x = 298,794.15 × 80,868.90
  4. Step 4: Simplify right side
    199,200.90x = 24,163,154,236.94
  5. Step 5: Solve for x
    x = 24,163,154,236.94/199,200.90
  6. Step 6: Final answer
    x = 121,300.43

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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.