Home / 261,144.20-391,845.90-148,910.60

Finding the Fourth Proportional to 261,144.20, 391,845.90 and 148,910.60

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Solution

The fourth proportional to 261,144.20, 391,845.90 and 148,910.60 is: 223,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,144.20 : 391,845.90 = 148,910.60 : x
  2. Step 2: Convert to fraction form
    261,144.20/391,845.90 = 148,910.60/x
  3. Step 3: Cross multiply
    261,144.20x = 391,845.90 × 148,910.60
  4. Step 4: Simplify right side
    261,144.20x = 58,350,008,076.54
  5. Step 5: Solve for x
    x = 58,350,008,076.54/261,144.20
  6. Step 6: Final answer
    x = 223,439.80

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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.