Finding the Fourth Proportional to 209,728.44, 289,425.69 and 114,234.84
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Solution
The fourth proportional to 209,728.44, 289,425.69 and 114,234.84 is: 157,644.32
Step by Step Solution
- Step 1: Write the proportion equation
209,728.44 : 289,425.69 = 114,234.84 : x - Step 2: Convert to fraction form
209,728.44/289,425.69 = 114,234.84/x - Step 3: Cross multiply
209,728.44x = 289,425.69 × 114,234.84 - Step 4: Simplify right side
209,728.44x = 33,062,497,389.04 - Step 5: Solve for x
x = 33,062,497,389.04/209,728.44 - Step 6: Final answer
x = 157,644.32
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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.