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Finding the Fourth Proportional to 200,882.40, 300,982.96 and 133,367.20

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Solution

The fourth proportional to 200,882.40, 300,982.96 and 133,367.20 is: 199,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,882.40 : 300,982.96 = 133,367.20 : x
  2. Step 2: Convert to fraction form
    200,882.40/300,982.96 = 133,367.20/x
  3. Step 3: Cross multiply
    200,882.40x = 300,982.96 × 133,367.20
  4. Step 4: Simplify right side
    200,882.40x = 40,141,254,622.91
  5. Step 5: Solve for x
    x = 40,141,254,622.91/200,882.40
  6. Step 6: Final answer
    x = 199,824.65

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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.