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Finding the Fourth Proportional to 200,553.40, 300,757.20 and 100,680.40

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Solution

The fourth proportional to 200,553.40, 300,757.20 and 100,680.40 is: 150,984.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,553.40 : 300,757.20 = 100,680.40 : x
  2. Step 2: Convert to fraction form
    200,553.40/300,757.20 = 100,680.40/x
  3. Step 3: Cross multiply
    200,553.40x = 300,757.20 × 100,680.40
  4. Step 4: Simplify right side
    200,553.40x = 30,280,355,198.88
  5. Step 5: Solve for x
    x = 30,280,355,198.88/200,553.40
  6. Step 6: Final answer
    x = 150,984.00

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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.