Finding the Fourth Proportional to 222,162.75, 306,584.80 and 121,560.75
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Solution
The fourth proportional to 222,162.75, 306,584.80 and 121,560.75 is: 167,753.95
Step by Step Solution
- Step 1: Write the proportion equation
222,162.75 : 306,584.80 = 121,560.75 : x - Step 2: Convert to fraction form
222,162.75/306,584.80 = 121,560.75/x - Step 3: Cross multiply
222,162.75x = 306,584.80 × 121,560.75 - Step 4: Simplify right side
222,162.75x = 37,268,677,922.70 - Step 5: Solve for x
x = 37,268,677,922.70/222,162.75 - Step 6: Final answer
x = 167,753.95
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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.