Finding the Fourth Proportional to 203,914.70, 305,872.05 and 119,715.20
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Solution
The fourth proportional to 203,914.70, 305,872.05 and 119,715.20 is: 179,572.80
Step by Step Solution
- Step 1: Write the proportion equation
203,914.70 : 305,872.05 = 119,715.20 : x - Step 2: Convert to fraction form
203,914.70/305,872.05 = 119,715.20/x - Step 3: Cross multiply
203,914.70x = 305,872.05 × 119,715.20 - Step 4: Simplify right side
203,914.70x = 36,617,533,640.16 - Step 5: Solve for x
x = 36,617,533,640.16/203,914.70 - Step 6: Final answer
x = 179,572.80
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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.