Finding the Fourth Proportional to 198,816.93, 274,376.97 and 113,934.20
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Solution
The fourth proportional to 198,816.93, 274,376.97 and 113,934.20 is: 157,234.69
Step by Step Solution
- Step 1: Write the proportion equation
198,816.93 : 274,376.97 = 113,934.20 : x - Step 2: Convert to fraction form
198,816.93/274,376.97 = 113,934.20/x - Step 3: Cross multiply
198,816.93x = 274,376.97 × 113,934.20 - Step 4: Simplify right side
198,816.93x = 31,260,919,203.49 - Step 5: Solve for x
x = 31,260,919,203.49/198,816.93 - Step 6: Final answer
x = 157,234.69
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1.5x scale
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.