Finding the Fourth Proportional to 198,620.97, 274,096.35 and 107,976.84
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Solution
The fourth proportional to 198,620.97, 274,096.35 and 107,976.84 is: 149,007.72
Step by Step Solution
- Step 1: Write the proportion equation
198,620.97 : 274,096.35 = 107,976.84 : x - Step 2: Convert to fraction form
198,620.97/274,096.35 = 107,976.84/x - Step 3: Cross multiply
198,620.97x = 274,096.35 × 107,976.84 - Step 4: Simplify right side
198,620.97x = 29,596,057,728.53 - Step 5: Solve for x
x = 29,596,057,728.53/198,620.97 - Step 6: Final answer
x = 149,007.72
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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.