Finding the Fourth Proportional to 198,407.26, 273,770.01 and 121,901.74
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Solution
The fourth proportional to 198,407.26, 273,770.01 and 121,901.74 is: 168,204.73
Step by Step Solution
- Step 1: Write the proportion equation
198,407.26 : 273,770.01 = 121,901.74 : x - Step 2: Convert to fraction form
198,407.26/273,770.01 = 121,901.74/x - Step 3: Cross multiply
198,407.26x = 273,770.01 × 121,901.74 - Step 4: Simplify right side
198,407.26x = 33,373,040,578.82 - Step 5: Solve for x
x = 33,373,040,578.82/198,407.26 - Step 6: Final answer
x = 168,204.73
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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.