Finding the Fourth Proportional to 198,766.12, 274,205.10 and 118,148.44
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Solution
The fourth proportional to 198,766.12, 274,205.10 and 118,148.44 is: 162,990.07
Step by Step Solution
- Step 1: Write the proportion equation
198,766.12 : 274,205.10 = 118,148.44 : x - Step 2: Convert to fraction form
198,766.12/274,205.10 = 118,148.44/x - Step 3: Cross multiply
198,766.12x = 274,205.10 × 118,148.44 - Step 4: Simplify right side
198,766.12x = 32,396,904,805.04 - Step 5: Solve for x
x = 32,396,904,805.04/198,766.12 - Step 6: Final answer
x = 162,990.07
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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.