Finding the Fourth Proportional to 394,213.58, 591,361.61 and 180,945.09
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Solution
The fourth proportional to 394,213.58, 591,361.61 and 180,945.09 is: 271,436.56
Step by Step Solution
- Step 1: Write the proportion equation
394,213.58 : 591,361.61 = 180,945.09 : x - Step 2: Convert to fraction form
394,213.58/591,361.61 = 180,945.09/x - Step 3: Cross multiply
394,213.58x = 591,361.61 × 180,945.09 - Step 4: Simplify right side
394,213.58x = 107,003,979,857.09 - Step 5: Solve for x
x = 107,003,979,857.09/394,213.58 - Step 6: Final answer
x = 271,436.56
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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.