Finding the Fourth Proportional to 281,990.25, 389,239.61 and 252,096.70
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Solution
The fourth proportional to 281,990.25, 389,239.61 and 252,096.70 is: 347,976.65
Step by Step Solution
- Step 1: Write the proportion equation
281,990.25 : 389,239.61 = 252,096.70 : x - Step 2: Convert to fraction form
281,990.25/389,239.61 = 252,096.70/x - Step 3: Cross multiply
281,990.25x = 389,239.61 × 252,096.70 - Step 4: Simplify right side
281,990.25x = 98,126,021,190.29 - Step 5: Solve for x
x = 98,126,021,190.29/281,990.25 - Step 6: Final answer
x = 347,976.65
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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.