Finding the Fourth Proportional to 206,951.70, 310,481.55 and 66,713.70
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Solution
The fourth proportional to 206,951.70, 310,481.55 and 66,713.70 is: 100,087.96
Step by Step Solution
- Step 1: Write the proportion equation
206,951.70 : 310,481.55 = 66,713.70 : x - Step 2: Convert to fraction form
206,951.70/310,481.55 = 66,713.70/x - Step 3: Cross multiply
206,951.70x = 310,481.55 × 66,713.70 - Step 4: Simplify right side
206,951.70x = 20,713,372,982.24 - Step 5: Solve for x
x = 20,713,372,982.24/206,951.70 - Step 6: Final answer
x = 100,087.96
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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.