Home / 204,780.20-307,170.30-133,921.40

Finding the Fourth Proportional to 204,780.20, 307,170.30 and 133,921.40

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Solution

The fourth proportional to 204,780.20, 307,170.30 and 133,921.40 is: 200,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,780.20 : 307,170.30 = 133,921.40 : x
  2. Step 2: Convert to fraction form
    204,780.20/307,170.30 = 133,921.40/x
  3. Step 3: Cross multiply
    204,780.20x = 307,170.30 × 133,921.40
  4. Step 4: Simplify right side
    204,780.20x = 41,136,676,614.42
  5. Step 5: Solve for x
    x = 41,136,676,614.42/204,780.20
  6. Step 6: Final answer
    x = 200,882.10

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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.