Finding the Fourth Proportional to 413.70, 571.11 and 324.99
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Solution
The fourth proportional to 413.70, 571.11 and 324.99 is: 448.65
Step by Step Solution
- Step 1: Write the proportion equation
413.70 : 571.11 = 324.99 : x - Step 2: Convert to fraction form
413.70/571.11 = 324.99/x - Step 3: Cross multiply
413.70x = 571.11 × 324.99 - Step 4: Simplify right side
413.70x = 185,605.04 - Step 5: Solve for x
x = 185,605.04/413.70 - Step 6: Final answer
x = 448.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.