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Finding the Fourth Proportional to 202,145.10, 303,217.65 and 199,520.70

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Solution

The fourth proportional to 202,145.10, 303,217.65 and 199,520.70 is: 299,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,145.10 : 303,217.65 = 199,520.70 : x
  2. Step 2: Convert to fraction form
    202,145.10/303,217.65 = 199,520.70/x
  3. Step 3: Cross multiply
    202,145.10x = 303,217.65 × 199,520.70
  4. Step 4: Simplify right side
    202,145.10x = 60,498,197,780.36
  5. Step 5: Solve for x
    x = 60,498,197,780.36/202,145.10
  6. Step 6: Final answer
    x = 299,281.05

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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.