Finding the Fourth Proportional to 247,413.80, 371,072.10 and 81,201.80
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Solution
The fourth proportional to 247,413.80, 371,072.10 and 81,201.80 is: 121,786.75
Step by Step Solution
- Step 1: Write the proportion equation
247,413.80 : 371,072.10 = 81,201.80 : x - Step 2: Convert to fraction form
247,413.80/371,072.10 = 81,201.80/x - Step 3: Cross multiply
247,413.80x = 371,072.10 × 81,201.80 - Step 4: Simplify right side
247,413.80x = 30,131,722,449.78 - Step 5: Solve for x
x = 30,131,722,449.78/247,413.80 - Step 6: Final answer
x = 121,786.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.