Home / 263,279.20-394,803.60-105,455.20

Finding the Fourth Proportional to 263,279.20, 394,803.60 and 105,455.20

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Solution

The fourth proportional to 263,279.20, 394,803.60 and 105,455.20 is: 158,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,279.20 : 394,803.60 = 105,455.20 : x
  2. Step 2: Convert to fraction form
    263,279.20/394,803.60 = 105,455.20/x
  3. Step 3: Cross multiply
    263,279.20x = 394,803.60 × 105,455.20
  4. Step 4: Simplify right side
    263,279.20x = 41,634,092,598.72
  5. Step 5: Solve for x
    x = 41,634,092,598.72/263,279.20
  6. Step 6: Final answer
    x = 158,136.66

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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.