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Finding the Fourth Proportional to 339,997.60, 509,850.60 and 171,452.80

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Solution

The fourth proportional to 339,997.60, 509,850.60 and 171,452.80 is: 257,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,997.60 : 509,850.60 = 171,452.80 : x
  2. Step 2: Convert to fraction form
    339,997.60/509,850.60 = 171,452.80/x
  3. Step 3: Cross multiply
    339,997.60x = 509,850.60 × 171,452.80
  4. Step 4: Simplify right side
    339,997.60x = 87,415,312,951.68
  5. Step 5: Solve for x
    x = 87,415,312,951.68/339,997.60
  6. Step 6: Final answer
    x = 257,105.68

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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.