Finding the Fourth Proportional to 202,447.05, 303,227.70 and 131,121.69
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Solution
The fourth proportional to 202,447.05, 303,227.70 and 131,121.69 is: 196,395.69
Step by Step Solution
- Step 1: Write the proportion equation
202,447.05 : 303,227.70 = 131,121.69 : x - Step 2: Convert to fraction form
202,447.05/303,227.70 = 131,121.69/x - Step 3: Cross multiply
202,447.05x = 303,227.70 × 131,121.69 - Step 4: Simplify right side
202,447.05x = 39,759,728,478.81 - Step 5: Solve for x
x = 39,759,728,478.81/202,447.05 - Step 6: Final answer
x = 196,395.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.