Finding the Fourth Proportional to 198,028.44, 273,293.73 and 113,143.68
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Solution
The fourth proportional to 198,028.44, 273,293.73 and 113,143.68 is: 156,146.55
Step by Step Solution
- Step 1: Write the proportion equation
198,028.44 : 273,293.73 = 113,143.68 : x - Step 2: Convert to fraction form
198,028.44/273,293.73 = 113,143.68/x - Step 3: Cross multiply
198,028.44x = 273,293.73 × 113,143.68 - Step 4: Simplify right side
198,028.44x = 30,921,458,333.13 - Step 5: Solve for x
x = 30,921,458,333.13/198,028.44 - Step 6: Final answer
x = 156,146.55
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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.