Finding the Fourth Proportional to 198,694.36, 274,205.40 and 113,827.82
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Solution
The fourth proportional to 198,694.36, 274,205.40 and 113,827.82 is: 157,086.51
Step by Step Solution
- Step 1: Write the proportion equation
198,694.36 : 274,205.40 = 113,827.82 : x - Step 2: Convert to fraction form
198,694.36/274,205.40 = 113,827.82/x - Step 3: Cross multiply
198,694.36x = 274,205.40 × 113,827.82 - Step 4: Simplify right side
198,694.36x = 31,212,202,914.23 - Step 5: Solve for x
x = 31,212,202,914.23/198,694.36 - Step 6: Final answer
x = 157,086.51
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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.