Finding the Fourth Proportional to 413.75, 620.93 and 157.25
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Solution
The fourth proportional to 413.75, 620.93 and 157.25 is: 235.99
Step by Step Solution
- Step 1: Write the proportion equation
413.75 : 620.93 = 157.25 : x - Step 2: Convert to fraction form
413.75/620.93 = 157.25/x - Step 3: Cross multiply
413.75x = 620.93 × 157.25 - Step 4: Simplify right side
413.75x = 97,641.24 - Step 5: Solve for x
x = 97,641.24/413.75 - Step 6: Final answer
x = 235.99
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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.