Finding the Fourth Proportional to 311,951.75, 468,134.99 and 114,959.75
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Solution
The fourth proportional to 311,951.75, 468,134.99 and 114,959.75 is: 172,516.04
Step by Step Solution
- Step 1: Write the proportion equation
311,951.75 : 468,134.99 = 114,959.75 : x - Step 2: Convert to fraction form
311,951.75/468,134.99 = 114,959.75/x - Step 3: Cross multiply
311,951.75x = 468,134.99 × 114,959.75 - Step 4: Simplify right side
311,951.75x = 53,816,681,416.65 - Step 5: Solve for x
x = 53,816,681,416.65/311,951.75 - Step 6: Final answer
x = 172,516.04
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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.