Finding the Fourth Proportional to 222,252.20, 306,631.78 and 126,689.96
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Solution
The fourth proportional to 222,252.20, 306,631.78 and 126,689.96 is: 174,788.68
Step by Step Solution
- Step 1: Write the proportion equation
222,252.20 : 306,631.78 = 126,689.96 : x - Step 2: Convert to fraction form
222,252.20/306,631.78 = 126,689.96/x - Step 3: Cross multiply
222,252.20x = 306,631.78 × 126,689.96 - Step 4: Simplify right side
222,252.20x = 38,847,167,942.93 - Step 5: Solve for x
x = 38,847,167,942.93/222,252.20 - Step 6: Final answer
x = 174,788.68
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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.