Finding the Fourth Proportional to 203,615.81, 280,984.44 and 111,734.81
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Solution
The fourth proportional to 203,615.81, 280,984.44 and 111,734.81 is: 154,191.09
Step by Step Solution
- Step 1: Write the proportion equation
203,615.81 : 280,984.44 = 111,734.81 : x - Step 2: Convert to fraction form
203,615.81/280,984.44 = 111,734.81/x - Step 3: Cross multiply
203,615.81x = 280,984.44 × 111,734.81 - Step 4: Simplify right side
203,615.81x = 31,395,743,084.13 - Step 5: Solve for x
x = 31,395,743,084.13/203,615.81 - Step 6: Final answer
x = 154,191.09
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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.