Finding the Fourth Proportional to 352,413.10, 486,211.71 and 225,163.18
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Solution
The fourth proportional to 352,413.10, 486,211.71 and 225,163.18 is: 310,649.56
Step by Step Solution
- Step 1: Write the proportion equation
352,413.10 : 486,211.71 = 225,163.18 : x - Step 2: Convert to fraction form
352,413.10/486,211.71 = 225,163.18/x - Step 3: Cross multiply
352,413.10x = 486,211.71 × 225,163.18 - Step 4: Simplify right side
352,413.10x = 109,476,974,776.84 - Step 5: Solve for x
x = 109,476,974,776.84/352,413.10 - Step 6: Final answer
x = 310,649.56
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1.5x scale
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.