Finding the Fourth Proportional to 222,406.44, 306,928.26 and 121,809.96
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Solution
The fourth proportional to 222,406.44, 306,928.26 and 121,809.96 is: 168,101.78
Step by Step Solution
- Step 1: Write the proportion equation
222,406.44 : 306,928.26 = 121,809.96 : x - Step 2: Convert to fraction form
222,406.44/306,928.26 = 121,809.96/x - Step 3: Cross multiply
222,406.44x = 306,928.26 × 121,809.96 - Step 4: Simplify right side
222,406.44x = 37,386,919,073.47 - Step 5: Solve for x
x = 37,386,919,073.47/222,406.44 - Step 6: Final answer
x = 168,101.78
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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.