Finding the Fourth Proportional to 311,953.75, 468,137.99 and 114,961.75
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Solution
The fourth proportional to 311,953.75, 468,137.99 and 114,961.75 is: 172,519.04
Step by Step Solution
- Step 1: Write the proportion equation
311,953.75 : 468,137.99 = 114,961.75 : x - Step 2: Convert to fraction form
311,953.75/468,137.99 = 114,961.75/x - Step 3: Cross multiply
311,953.75x = 468,137.99 × 114,961.75 - Step 4: Simplify right side
311,953.75x = 53,817,962,571.88 - Step 5: Solve for x
x = 53,817,962,571.88/311,953.75 - Step 6: Final answer
x = 172,519.04
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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.