Finding the Fourth Proportional to 413.22, 620.08 and 153.18
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Solution
The fourth proportional to 413.22, 620.08 and 153.18 is: 229.85
Step by Step Solution
- Step 1: Write the proportion equation
413.22 : 620.08 = 153.18 : x - Step 2: Convert to fraction form
413.22/620.08 = 153.18/x - Step 3: Cross multiply
413.22x = 620.08 × 153.18 - Step 4: Simplify right side
413.22x = 94,979.99 - Step 5: Solve for x
x = 94,979.99/413.22 - Step 6: Final answer
x = 229.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.