Finding the Fourth Proportional to 209,198.06, 288,695.58 and 113,704.80
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Solution
The fourth proportional to 209,198.06, 288,695.58 and 113,704.80 is: 156,913.85
Step by Step Solution
- Step 1: Write the proportion equation
209,198.06 : 288,695.58 = 113,704.80 : x - Step 2: Convert to fraction form
209,198.06/288,695.58 = 113,704.80/x - Step 3: Cross multiply
209,198.06x = 288,695.58 × 113,704.80 - Step 4: Simplify right side
209,198.06x = 32,826,073,184.78 - Step 5: Solve for x
x = 32,826,073,184.78/209,198.06 - Step 6: Final answer
x = 156,913.85
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1.5x scale
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.