Finding the Fourth Proportional to 198,958.10, 274,553.23 and 108,311.75
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Solution
The fourth proportional to 198,958.10, 274,553.23 and 108,311.75 is: 149,465.33
Step by Step Solution
- Step 1: Write the proportion equation
198,958.10 : 274,553.23 = 108,311.75 : x - Step 2: Convert to fraction form
198,958.10/274,553.23 = 108,311.75/x - Step 3: Cross multiply
198,958.10x = 274,553.23 × 108,311.75 - Step 4: Simplify right side
198,958.10x = 29,737,338,895.13 - Step 5: Solve for x
x = 29,737,338,895.13/198,958.10 - Step 6: Final answer
x = 149,465.33
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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.