Finding the Fourth Proportional to 207,889.92, 311,696.64 and 114,439.68
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Solution
The fourth proportional to 207,889.92, 311,696.64 and 114,439.68 is: 171,583.42
Step by Step Solution
- Step 1: Write the proportion equation
207,889.92 : 311,696.64 = 114,439.68 : x - Step 2: Convert to fraction form
207,889.92/311,696.64 = 114,439.68/x - Step 3: Cross multiply
207,889.92x = 311,696.64 × 114,439.68 - Step 4: Simplify right side
207,889.92x = 35,670,463,738.68 - Step 5: Solve for x
x = 35,670,463,738.68/207,889.92 - Step 6: Final answer
x = 171,583.42
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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.