Finding the Fourth Proportional to 197,939.35, 296,974.19 and 131,640.31
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Solution
The fourth proportional to 197,939.35, 296,974.19 and 131,640.31 is: 197,503.80
Step by Step Solution
- Step 1: Write the proportion equation
197,939.35 : 296,974.19 = 131,640.31 : x - Step 2: Convert to fraction form
197,939.35/296,974.19 = 131,640.31/x - Step 3: Cross multiply
197,939.35x = 296,974.19 × 131,640.31 - Step 4: Simplify right side
197,939.35x = 39,093,774,433.60 - Step 5: Solve for x
x = 39,093,774,433.60/197,939.35 - Step 6: Final answer
x = 197,503.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.