Finding the Fourth Proportional to 209,608.62, 289,258.16 and 114,115.12
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Solution
The fourth proportional to 209,608.62, 289,258.16 and 114,115.12 is: 157,477.92
Step by Step Solution
- Step 1: Write the proportion equation
209,608.62 : 289,258.16 = 114,115.12 : x - Step 2: Convert to fraction form
209,608.62/289,258.16 = 114,115.12/x - Step 3: Cross multiply
209,608.62x = 289,258.16 × 114,115.12 - Step 4: Simplify right side
209,608.62x = 33,008,729,639.38 - Step 5: Solve for x
x = 33,008,729,639.38/209,608.62 - Step 6: Final answer
x = 157,477.92
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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.