Finding the Fourth Proportional to 222,293.75, 306,765.39 and 121,691.75
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Solution
The fourth proportional to 222,293.75, 306,765.39 and 121,691.75 is: 167,934.62
Step by Step Solution
- Step 1: Write the proportion equation
222,293.75 : 306,765.39 = 121,691.75 : x - Step 2: Convert to fraction form
222,293.75/306,765.39 = 121,691.75/x - Step 3: Cross multiply
222,293.75x = 306,765.39 × 121,691.75 - Step 4: Simplify right side
222,293.75x = 37,330,817,148.53 - Step 5: Solve for x
x = 37,330,817,148.53/222,293.75 - Step 6: Final answer
x = 167,934.62
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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.