Finding the Fourth Proportional to 263,372.73, 395,121.99 and 85,879.92
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Solution
The fourth proportional to 263,372.73, 395,121.99 and 85,879.92 is: 128,840.39
Step by Step Solution
- Step 1: Write the proportion equation
263,372.73 : 395,121.99 = 85,879.92 : x - Step 2: Convert to fraction form
263,372.73/395,121.99 = 85,879.92/x - Step 3: Cross multiply
263,372.73x = 395,121.99 × 85,879.92 - Step 4: Simplify right side
263,372.73x = 33,933,044,891.44 - Step 5: Solve for x
x = 33,933,044,891.44/263,372.73 - Step 6: Final answer
x = 128,840.39
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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.