Finding the Fourth Proportional to 222,114.13, 306,517.70 and 121,512.13
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Solution
The fourth proportional to 222,114.13, 306,517.70 and 121,512.13 is: 167,686.85
Step by Step Solution
- Step 1: Write the proportion equation
222,114.13 : 306,517.70 = 121,512.13 : x - Step 2: Convert to fraction form
222,114.13/306,517.70 = 121,512.13/x - Step 3: Cross multiply
222,114.13x = 306,517.70 × 121,512.13 - Step 4: Simplify right side
222,114.13x = 37,245,618,609.70 - Step 5: Solve for x
x = 37,245,618,609.70/222,114.13 - Step 6: Final answer
x = 167,686.85
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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.