Finding the Fourth Proportional to 269.30, 403.64 and 114.99
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Solution
The fourth proportional to 269.30, 403.64 and 114.99 is: 172.35
Step by Step Solution
- Step 1: Write the proportion equation
269.30 : 403.64 = 114.99 : x - Step 2: Convert to fraction form
269.30/403.64 = 114.99/x - Step 3: Cross multiply
269.30x = 403.64 × 114.99 - Step 4: Simplify right side
269.30x = 46,413.99 - Step 5: Solve for x
x = 46,413.99/269.30 - Step 6: Final answer
x = 172.35
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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.