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Finding the Fourth Proportional to 512,232.60, 768,348.90 and 263,400.60

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Solution

The fourth proportional to 512,232.60, 768,348.90 and 263,400.60 is: 395,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,232.60 : 768,348.90 = 263,400.60 : x
  2. Step 2: Convert to fraction form
    512,232.60/768,348.90 = 263,400.60/x
  3. Step 3: Cross multiply
    512,232.60x = 768,348.90 × 263,400.60
  4. Step 4: Simplify right side
    512,232.60x = 202,383,561,269.34
  5. Step 5: Solve for x
    x = 202,383,561,269.34/512,232.60
  6. Step 6: Final answer
    x = 395,100.90

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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.