Finding the Fourth Proportional to 198,413.96, 273,808.35 and 107,771.11
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Solution
The fourth proportional to 198,413.96, 273,808.35 and 107,771.11 is: 148,722.55
Step by Step Solution
- Step 1: Write the proportion equation
198,413.96 : 273,808.35 = 107,771.11 : x - Step 2: Convert to fraction form
198,413.96/273,808.35 = 107,771.11/x - Step 3: Cross multiply
198,413.96x = 273,808.35 × 107,771.11 - Step 4: Simplify right side
198,413.96x = 29,508,629,122.25 - Step 5: Solve for x
x = 29,508,629,122.25/198,413.96 - Step 6: Final answer
x = 148,722.55
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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.