Finding the Fourth Proportional to 413.99, 620.99 and 125.44
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Solution
The fourth proportional to 413.99, 620.99 and 125.44 is: 188.16
Step by Step Solution
- Step 1: Write the proportion equation
413.99 : 620.99 = 125.44 : x - Step 2: Convert to fraction form
413.99/620.99 = 125.44/x - Step 3: Cross multiply
413.99x = 620.99 × 125.44 - Step 4: Simplify right side
413.99x = 77,896.99 - Step 5: Solve for x
x = 77,896.99/413.99 - Step 6: Final answer
x = 188.16
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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.