Finding the Fourth Proportional to 198,379.44, 273,788.69 and 122,939.28
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Solution
The fourth proportional to 198,379.44, 273,788.69 and 122,939.28 is: 169,671.74
Step by Step Solution
- Step 1: Write the proportion equation
198,379.44 : 273,788.69 = 122,939.28 : x - Step 2: Convert to fraction form
198,379.44/273,788.69 = 122,939.28/x - Step 3: Cross multiply
198,379.44x = 273,788.69 × 122,939.28 - Step 4: Simplify right side
198,379.44x = 33,659,383,806.05 - Step 5: Solve for x
x = 33,659,383,806.05/198,379.44 - Step 6: Final answer
x = 169,671.74
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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.