Finding the Fourth Proportional to 198,696.75, 274,202.81 and 108,053.70
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Solution
The fourth proportional to 198,696.75, 274,202.81 and 108,053.70 is: 149,114.81
Step by Step Solution
- Step 1: Write the proportion equation
198,696.75 : 274,202.81 = 108,053.70 : x - Step 2: Convert to fraction form
198,696.75/274,202.81 = 108,053.70/x - Step 3: Cross multiply
198,696.75x = 274,202.81 × 108,053.70 - Step 4: Simplify right side
198,696.75x = 29,628,628,170.90 - Step 5: Solve for x
x = 29,628,628,170.90/198,696.75 - Step 6: Final answer
x = 149,114.81
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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.