Finding the Fourth Proportional to 222,359.62, 306,853.23 and 121,757.62
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Solution
The fourth proportional to 222,359.62, 306,853.23 and 121,757.62 is: 168,023.85
Step by Step Solution
- Step 1: Write the proportion equation
222,359.62 : 306,853.23 = 121,757.62 : x - Step 2: Convert to fraction form
222,359.62/306,853.23 = 121,757.62/x - Step 3: Cross multiply
222,359.62x = 306,853.23 × 121,757.62 - Step 4: Simplify right side
222,359.62x = 37,361,718,974.11 - Step 5: Solve for x
x = 37,361,718,974.11/222,359.62 - Step 6: Final answer
x = 168,023.85
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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.