Finding the Fourth Proportional to 209,311.22, 288,846.19 and 113,817.08
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Solution
The fourth proportional to 209,311.22, 288,846.19 and 113,817.08 is: 157,065.78
Step by Step Solution
- Step 1: Write the proportion equation
209,311.22 : 288,846.19 = 113,817.08 : x - Step 2: Convert to fraction form
209,311.22/288,846.19 = 113,817.08/x - Step 3: Cross multiply
209,311.22x = 288,846.19 × 113,817.08 - Step 4: Simplify right side
209,311.22x = 32,875,629,914.93 - Step 5: Solve for x
x = 32,875,629,914.93/209,311.22 - Step 6: Final answer
x = 157,065.78
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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.