Finding the Fourth Proportional to 222,435.05, 306,960.44 and 121,833.05
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Solution
The fourth proportional to 222,435.05, 306,960.44 and 121,833.05 is: 168,129.64
Step by Step Solution
- Step 1: Write the proportion equation
222,435.05 : 306,960.44 = 121,833.05 : x - Step 2: Convert to fraction form
222,435.05/306,960.44 = 121,833.05/x - Step 3: Cross multiply
222,435.05x = 306,960.44 × 121,833.05 - Step 4: Simplify right side
222,435.05x = 37,397,924,490.57 - Step 5: Solve for x
x = 37,397,924,490.57/222,435.05 - Step 6: Final answer
x = 168,129.64
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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.