Finding the Fourth Proportional to 209,042.80, 288,480.18 and 113,550.28
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Solution
The fourth proportional to 209,042.80, 288,480.18 and 113,550.28 is: 156,699.99
Step by Step Solution
- Step 1: Write the proportion equation
209,042.80 : 288,480.18 = 113,550.28 : x - Step 2: Convert to fraction form
209,042.80/288,480.18 = 113,550.28/x - Step 3: Cross multiply
209,042.80x = 288,480.18 × 113,550.28 - Step 4: Simplify right side
209,042.80x = 32,757,005,213.45 - Step 5: Solve for x
x = 32,757,005,213.45/209,042.80 - Step 6: Final answer
x = 156,699.99
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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.