Finding the Fourth Proportional to 189,391.64, 261,375.21 and 108,847.26
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Solution
The fourth proportional to 189,391.64, 261,375.21 and 108,847.26 is: 150,217.70
Step by Step Solution
- Step 1: Write the proportion equation
189,391.64 : 261,375.21 = 108,847.26 : x - Step 2: Convert to fraction form
189,391.64/261,375.21 = 108,847.26/x - Step 3: Cross multiply
189,391.64x = 261,375.21 × 108,847.26 - Step 4: Simplify right side
189,391.64x = 28,449,975,440.42 - Step 5: Solve for x
x = 28,449,975,440.42/189,391.64 - Step 6: Final answer
x = 150,217.70
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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.