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Finding the Fourth Proportional to 252,404.45, 378,524.79 and 83,879.49

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Solution

The fourth proportional to 252,404.45, 378,524.79 and 83,879.49 is: 125,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,404.45 : 378,524.79 = 83,879.49 : x
  2. Step 2: Convert to fraction form
    252,404.45/378,524.79 = 83,879.49/x
  3. Step 3: Cross multiply
    252,404.45x = 378,524.79 × 83,879.49
  4. Step 4: Simplify right side
    252,404.45x = 31,750,466,337.56
  5. Step 5: Solve for x
    x = 31,750,466,337.56/252,404.45
  6. Step 6: Final answer
    x = 125,792.02

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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.