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Finding the Fourth Proportional to 436,900.38, 655,449.82 and 133,321.67

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Solution

The fourth proportional to 436,900.38, 655,449.82 and 133,321.67 is: 200,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,900.38 : 655,449.82 = 133,321.67 : x
  2. Step 2: Convert to fraction form
    436,900.38/655,449.82 = 133,321.67/x
  3. Step 3: Cross multiply
    436,900.38x = 655,449.82 × 133,321.67
  4. Step 4: Simplify right side
    436,900.38x = 87,385,660,659.74
  5. Step 5: Solve for x
    x = 87,385,660,659.74/436,900.38
  6. Step 6: Final answer
    x = 200,012.78

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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.