Finding the Fourth Proportional to 198,489.18, 273,916.19 and 107,845.88
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Solution
The fourth proportional to 198,489.18, 273,916.19 and 107,845.88 is: 148,827.92
Step by Step Solution
- Step 1: Write the proportion equation
198,489.18 : 273,916.19 = 107,845.88 : x - Step 2: Convert to fraction form
198,489.18/273,916.19 = 107,845.88/x - Step 3: Cross multiply
198,489.18x = 273,916.19 × 107,845.88 - Step 4: Simplify right side
198,489.18x = 29,540,731,187.22 - Step 5: Solve for x
x = 29,540,731,187.22/198,489.18 - Step 6: Final answer
x = 148,827.92
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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.