Finding the Fourth Proportional to 413.61, 618.99 and 310.65
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Solution
The fourth proportional to 413.61, 618.99 and 310.65 is: 464.90
Step by Step Solution
- Step 1: Write the proportion equation
413.61 : 618.99 = 310.65 : x - Step 2: Convert to fraction form
413.61/618.99 = 310.65/x - Step 3: Cross multiply
413.61x = 618.99 × 310.65 - Step 4: Simplify right side
413.61x = 192,289.24 - Step 5: Solve for x
x = 192,289.24/413.61 - Step 6: Final answer
x = 464.90
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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.