Finding the Fourth Proportional to 413.91, 620.99 and 252.63
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Solution
The fourth proportional to 413.91, 620.99 and 252.63 is: 379.02
Step by Step Solution
- Step 1: Write the proportion equation
413.91 : 620.99 = 252.63 : x - Step 2: Convert to fraction form
413.91/620.99 = 252.63/x - Step 3: Cross multiply
413.91x = 620.99 × 252.63 - Step 4: Simplify right side
413.91x = 156,880.70 - Step 5: Solve for x
x = 156,880.70/413.91 - Step 6: Final answer
x = 379.02
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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.