Finding the Fourth Proportional to 209,342.82, 288,770.11 and 131,694.99
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Solution
The fourth proportional to 209,342.82, 288,770.11 and 131,694.99 is: 181,661.71
Step by Step Solution
- Step 1: Write the proportion equation
209,342.82 : 288,770.11 = 131,694.99 : x - Step 2: Convert to fraction form
209,342.82/288,770.11 = 131,694.99/x - Step 3: Cross multiply
209,342.82x = 288,770.11 × 131,694.99 - Step 4: Simplify right side
209,342.82x = 38,029,575,336.62 - Step 5: Solve for x
x = 38,029,575,336.62/209,342.82 - Step 6: Final answer
x = 181,661.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.