Finding the Fourth Proportional to 198,413.35, 273,812.43 and 107,771.09
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Solution
The fourth proportional to 198,413.35, 273,812.43 and 107,771.09 is: 148,725.19
Step by Step Solution
- Step 1: Write the proportion equation
198,413.35 : 273,812.43 = 107,771.09 : x - Step 2: Convert to fraction form
198,413.35/273,812.43 = 107,771.09/x - Step 3: Cross multiply
198,413.35x = 273,812.43 × 107,771.09 - Step 4: Simplify right side
198,413.35x = 29,509,062,937.01 - Step 5: Solve for x
x = 29,509,062,937.01/198,413.35 - Step 6: Final answer
x = 148,725.19
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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.