Finding the Fourth Proportional to 203,988.60, 281,458.26 and 123,414.12
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Solution
The fourth proportional to 203,988.60, 281,458.26 and 123,414.12 is: 170,283.65
Step by Step Solution
- Step 1: Write the proportion equation
203,988.60 : 281,458.26 = 123,414.12 : x - Step 2: Convert to fraction form
203,988.60/281,458.26 = 123,414.12/x - Step 3: Cross multiply
203,988.60x = 281,458.26 × 123,414.12 - Step 4: Simplify right side
203,988.60x = 34,735,923,474.63 - Step 5: Solve for x
x = 34,735,923,474.63/203,988.60 - Step 6: Final answer
x = 170,283.65
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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.