Finding the Fourth Proportional to 203,988.87, 305,982.79 and 54,229.10
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Solution
The fourth proportional to 203,988.87, 305,982.79 and 54,229.10 is: 81,343.50
Step by Step Solution
- Step 1: Write the proportion equation
203,988.87 : 305,982.79 = 54,229.10 : x - Step 2: Convert to fraction form
203,988.87/305,982.79 = 54,229.10/x - Step 3: Cross multiply
203,988.87x = 305,982.79 × 54,229.10 - Step 4: Simplify right side
203,988.87x = 16,593,169,651.70 - Step 5: Solve for x
x = 16,593,169,651.70/203,988.87 - Step 6: Final answer
x = 81,343.50
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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.