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Finding the Fourth Proportional to 199,201.40, 298,794.90 and 80,869.40

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Solution

The fourth proportional to 199,201.40, 298,794.90 and 80,869.40 is: 121,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,201.40 : 298,794.90 = 80,869.40 : x
  2. Step 2: Convert to fraction form
    199,201.40/298,794.90 = 80,869.40/x
  3. Step 3: Cross multiply
    199,201.40x = 298,794.90 × 80,869.40
  4. Step 4: Simplify right side
    199,201.40x = 24,163,364,286.06
  5. Step 5: Solve for x
    x = 24,163,364,286.06/199,201.40
  6. Step 6: Final answer
    x = 121,301.18

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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.