Finding the Fourth Proportional to 198,428.41, 273,874.53 and 122,013.26
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Solution
The fourth proportional to 198,428.41, 273,874.53 and 122,013.26 is: 168,404.94
Step by Step Solution
- Step 1: Write the proportion equation
198,428.41 : 273,874.53 = 122,013.26 : x - Step 2: Convert to fraction form
198,428.41/273,874.53 = 122,013.26/x - Step 3: Cross multiply
198,428.41x = 273,874.53 × 122,013.26 - Step 4: Simplify right side
198,428.41x = 33,416,324,236.27 - Step 5: Solve for x
x = 33,416,324,236.27/198,428.41 - Step 6: Final answer
x = 168,404.94
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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.