Finding the Fourth Proportional to 209,329.75, 288,872.34 and 113,834.40
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Solution
The fourth proportional to 209,329.75, 288,872.34 and 113,834.40 is: 157,089.99
Step by Step Solution
- Step 1: Write the proportion equation
209,329.75 : 288,872.34 = 113,834.40 : x - Step 2: Convert to fraction form
209,329.75/288,872.34 = 113,834.40/x - Step 3: Cross multiply
209,329.75x = 288,872.34 × 113,834.40 - Step 4: Simplify right side
209,329.75x = 32,883,608,844.10 - Step 5: Solve for x
x = 32,883,608,844.10/209,329.75 - Step 6: Final answer
x = 157,089.99
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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.