Finding the Fourth Proportional to 206,207.92, 309,224.40 and 73,121.68
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Solution
The fourth proportional to 206,207.92, 309,224.40 and 73,121.68 is: 109,651.50
Step by Step Solution
- Step 1: Write the proportion equation
206,207.92 : 309,224.40 = 73,121.68 : x - Step 2: Convert to fraction form
206,207.92/309,224.40 = 73,121.68/x - Step 3: Cross multiply
206,207.92x = 309,224.40 × 73,121.68 - Step 4: Simplify right side
206,207.92x = 22,611,007,624.99 - Step 5: Solve for x
x = 22,611,007,624.99/206,207.92 - Step 6: Final answer
x = 109,651.50
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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.