Finding the Fourth Proportional to 321,122.08, 443,142.93 and 177,879.12
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Solution
The fourth proportional to 321,122.08, 443,142.93 and 177,879.12 is: 245,470.12
Step by Step Solution
- Step 1: Write the proportion equation
321,122.08 : 443,142.93 = 177,879.12 : x - Step 2: Convert to fraction form
321,122.08/443,142.93 = 177,879.12/x - Step 3: Cross multiply
321,122.08x = 443,142.93 × 177,879.12 - Step 4: Simplify right side
321,122.08x = 78,825,874,422.62 - Step 5: Solve for x
x = 78,825,874,422.62/321,122.08 - Step 6: Final answer
x = 245,470.12
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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.