Finding the Fourth Proportional to 198,129.18, 273,389.25 and 113,229.84
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Solution
The fourth proportional to 198,129.18, 273,389.25 and 113,229.84 is: 156,240.60
Step by Step Solution
- Step 1: Write the proportion equation
198,129.18 : 273,389.25 = 113,229.84 : x - Step 2: Convert to fraction form
198,129.18/273,389.25 = 113,229.84/x - Step 3: Cross multiply
198,129.18x = 273,389.25 × 113,229.84 - Step 4: Simplify right side
198,129.18x = 30,955,821,035.22 - Step 5: Solve for x
x = 30,955,821,035.22/198,129.18 - Step 6: Final answer
x = 156,240.60
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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.