Finding the Fourth Proportional to 275.68, 413.19 and 272.63
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Solution
The fourth proportional to 275.68, 413.19 and 272.63 is: 408.63
Step by Step Solution
- Step 1: Write the proportion equation
275.68 : 413.19 = 272.63 : x - Step 2: Convert to fraction form
275.68/413.19 = 272.63/x - Step 3: Cross multiply
275.68x = 413.19 × 272.63 - Step 4: Simplify right side
275.68x = 112,647.99 - Step 5: Solve for x
x = 112,647.99/275.68 - Step 6: Final answer
x = 408.63
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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.