Finding the Fourth Proportional to 209,205.40, 288,703.82 and 113,711.84
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Solution
The fourth proportional to 209,205.40, 288,703.82 and 113,711.84 is: 156,922.54
Step by Step Solution
- Step 1: Write the proportion equation
209,205.40 : 288,703.82 = 113,711.84 : x - Step 2: Convert to fraction form
209,205.40/288,703.82 = 113,711.84/x - Step 3: Cross multiply
209,205.40x = 288,703.82 × 113,711.84 - Step 4: Simplify right side
209,205.40x = 32,829,042,587.23 - Step 5: Solve for x
x = 32,829,042,587.23/209,205.40 - Step 6: Final answer
x = 156,922.54
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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.