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Finding the Fourth Proportional to 437,125.40, 655,493.70 and 200,540.60

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Solution

The fourth proportional to 437,125.40, 655,493.70 and 200,540.60 is: 300,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,125.40 : 655,493.70 = 200,540.60 : x
  2. Step 2: Convert to fraction form
    437,125.40/655,493.70 = 200,540.60/x
  3. Step 3: Cross multiply
    437,125.40x = 655,493.70 × 200,540.60
  4. Step 4: Simplify right side
    437,125.40x = 131,453,099,894.22
  5. Step 5: Solve for x
    x = 131,453,099,894.22/437,125.40
  6. Step 6: Final answer
    x = 300,721.71

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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.