Finding the Fourth Proportional to 222,171.32, 306,604.14 and 121,578.68
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Solution
The fourth proportional to 222,171.32, 306,604.14 and 121,578.68 is: 167,782.80
Step by Step Solution
- Step 1: Write the proportion equation
222,171.32 : 306,604.14 = 121,578.68 : x - Step 2: Convert to fraction form
222,171.32/306,604.14 = 121,578.68/x - Step 3: Cross multiply
222,171.32x = 306,604.14 × 121,578.68 - Step 4: Simplify right side
222,171.32x = 37,276,526,623.74 - Step 5: Solve for x
x = 37,276,526,623.74/222,171.32 - Step 6: Final answer
x = 167,782.80
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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.