Finding the Fourth Proportional to 263,372.23, 395,121.26 and 85,879.41
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Solution
The fourth proportional to 263,372.23, 395,121.26 and 85,879.41 is: 128,839.63
Step by Step Solution
- Step 1: Write the proportion equation
263,372.23 : 395,121.26 = 85,879.41 : x - Step 2: Convert to fraction form
263,372.23/395,121.26 = 85,879.41/x - Step 3: Cross multiply
263,372.23x = 395,121.26 × 85,879.41 - Step 4: Simplify right side
263,372.23x = 33,932,780,687.26 - Step 5: Solve for x
x = 33,932,780,687.26/263,372.23 - Step 6: Final answer
x = 128,839.63
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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.