Finding the Fourth Proportional to 209,207.80, 313,636.02 and 145,841.68
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Solution
The fourth proportional to 209,207.80, 313,636.02 and 145,841.68 is: 218,640.05
Step by Step Solution
- Step 1: Write the proportion equation
209,207.80 : 313,636.02 = 145,841.68 : x - Step 2: Convert to fraction form
209,207.80/313,636.02 = 145,841.68/x - Step 3: Cross multiply
209,207.80x = 313,636.02 × 145,841.68 - Step 4: Simplify right side
209,207.80x = 45,741,204,065.31 - Step 5: Solve for x
x = 45,741,204,065.31/209,207.80 - Step 6: Final answer
x = 218,640.05
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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.