Finding the Fourth Proportional to 198,716.68, 274,163.70 and 123,250.60
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Solution
The fourth proportional to 198,716.68, 274,163.70 and 123,250.60 is: 170,045.32
Step by Step Solution
- Step 1: Write the proportion equation
198,716.68 : 274,163.70 = 123,250.60 : x - Step 2: Convert to fraction form
198,716.68/274,163.70 = 123,250.60/x - Step 3: Cross multiply
198,716.68x = 274,163.70 × 123,250.60 - Step 4: Simplify right side
198,716.68x = 33,790,840,523.22 - Step 5: Solve for x
x = 33,790,840,523.22/198,716.68 - Step 6: Final answer
x = 170,045.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.