Finding the Fourth Proportional to 201,115.40, 301,413.90 and 154,135.40
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Solution
The fourth proportional to 201,115.40, 301,413.90 and 154,135.40 is: 231,004.45
Step by Step Solution
- Step 1: Write the proportion equation
201,115.40 : 301,413.90 = 154,135.40 : x - Step 2: Convert to fraction form
201,115.40/301,413.90 = 154,135.40/x - Step 3: Cross multiply
201,115.40x = 301,413.90 × 154,135.40 - Step 4: Simplify right side
201,115.40x = 46,458,552,042.06 - Step 5: Solve for x
x = 46,458,552,042.06/201,115.40 - Step 6: Final answer
x = 231,004.45
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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.