Finding the Fourth Proportional to 311,861.70, 467,792.55 and 154,397.70
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Solution
The fourth proportional to 311,861.70, 467,792.55 and 154,397.70 is: 231,596.55
Step by Step Solution
- Step 1: Write the proportion equation
311,861.70 : 467,792.55 = 154,397.70 : x - Step 2: Convert to fraction form
311,861.70/467,792.55 = 154,397.70/x - Step 3: Cross multiply
311,861.70x = 467,792.55 × 154,397.70 - Step 4: Simplify right side
311,861.70x = 72,226,093,797.14 - Step 5: Solve for x
x = 72,226,093,797.14/311,861.70 - Step 6: Final answer
x = 231,596.55
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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.