Finding the Fourth Proportional to 261,413.10, 392,119.65 and 202,291.20
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Solution
The fourth proportional to 261,413.10, 392,119.65 and 202,291.20 is: 303,436.80
Step by Step Solution
- Step 1: Write the proportion equation
261,413.10 : 392,119.65 = 202,291.20 : x - Step 2: Convert to fraction form
261,413.10/392,119.65 = 202,291.20/x - Step 3: Cross multiply
261,413.10x = 392,119.65 × 202,291.20 - Step 4: Simplify right side
261,413.10x = 79,322,354,542.08 - Step 5: Solve for x
x = 79,322,354,542.08/261,413.10 - Step 6: Final answer
x = 303,436.80
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1.5x scale
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.