Finding the Fourth Proportional to 253,163.70, 379,413.36 and 186,290.70
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Solution
The fourth proportional to 253,163.70, 379,413.36 and 186,290.70 is: 279,191.61
Step by Step Solution
- Step 1: Write the proportion equation
253,163.70 : 379,413.36 = 186,290.70 : x - Step 2: Convert to fraction form
253,163.70/379,413.36 = 186,290.70/x - Step 3: Cross multiply
253,163.70x = 379,413.36 × 186,290.70 - Step 4: Simplify right side
253,163.70x = 70,681,180,423.75 - Step 5: Solve for x
x = 70,681,180,423.75/253,163.70 - Step 6: Final answer
x = 279,191.61
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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.