Finding the Fourth Proportional to 306,200.26, 422,570.74 and 170,236.44
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Solution
The fourth proportional to 306,200.26, 422,570.74 and 170,236.44 is: 234,934.28
Step by Step Solution
- Step 1: Write the proportion equation
306,200.26 : 422,570.74 = 170,236.44 : x - Step 2: Convert to fraction form
306,200.26/422,570.74 = 170,236.44/x - Step 3: Cross multiply
306,200.26x = 422,570.74 × 170,236.44 - Step 4: Simplify right side
306,200.26x = 71,936,938,425.77 - Step 5: Solve for x
x = 71,936,938,425.77/306,200.26 - Step 6: Final answer
x = 234,934.28
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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.