Finding the Fourth Proportional to 295,879.12, 408,319.44 and 161,743.12
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Solution
The fourth proportional to 295,879.12, 408,319.44 and 161,743.12 is: 223,208.92
Step by Step Solution
- Step 1: Write the proportion equation
295,879.12 : 408,319.44 = 161,743.12 : x - Step 2: Convert to fraction form
295,879.12/408,319.44 = 161,743.12/x - Step 3: Cross multiply
295,879.12x = 408,319.44 × 161,743.12 - Step 4: Simplify right side
295,879.12x = 66,042,860,182.25 - Step 5: Solve for x
x = 66,042,860,182.25/295,879.12 - Step 6: Final answer
x = 223,208.92
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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.