Finding the Fourth Proportional to 252,724.62, 378,960.17 and 84,185.70
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Solution
The fourth proportional to 252,724.62, 378,960.17 and 84,185.70 is: 126,236.32
Step by Step Solution
- Step 1: Write the proportion equation
252,724.62 : 378,960.17 = 84,185.70 : x - Step 2: Convert to fraction form
252,724.62/378,960.17 = 84,185.70/x - Step 3: Cross multiply
252,724.62x = 378,960.17 × 84,185.70 - Step 4: Simplify right side
252,724.62x = 31,903,025,815.08 - Step 5: Solve for x
x = 31,903,025,815.08/252,724.62 - Step 6: Final answer
x = 126,236.32
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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.