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Finding the Fourth Proportional to 437,135.40, 655,508.70 and 200,550.60

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Solution

The fourth proportional to 437,135.40, 655,508.70 and 200,550.60 is: 300,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,135.40 : 655,508.70 = 200,550.60 : x
  2. Step 2: Convert to fraction form
    437,135.40/655,508.70 = 200,550.60/x
  3. Step 3: Cross multiply
    437,135.40x = 655,508.70 × 200,550.60
  4. Step 4: Simplify right side
    437,135.40x = 131,462,663,090.22
  5. Step 5: Solve for x
    x = 131,462,663,090.22/437,135.40
  6. Step 6: Final answer
    x = 300,736.71

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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.