Finding the Fourth Proportional to 203,815.17, 305,722.35 and 133,678.08
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Solution
The fourth proportional to 203,815.17, 305,722.35 and 133,678.08 is: 200,516.85
Step by Step Solution
- Step 1: Write the proportion equation
203,815.17 : 305,722.35 = 133,678.08 : x - Step 2: Convert to fraction form
203,815.17/305,722.35 = 133,678.08/x - Step 3: Cross multiply
203,815.17x = 305,722.35 × 133,678.08 - Step 4: Simplify right side
203,815.17x = 40,868,376,761.09 - Step 5: Solve for x
x = 40,868,376,761.09/203,815.17 - Step 6: Final answer
x = 200,516.85
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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.