Finding the Fourth Proportional to 281,138.40, 421,707.60 and 94,149.90
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Solution
The fourth proportional to 281,138.40, 421,707.60 and 94,149.90 is: 141,224.85
Step by Step Solution
- Step 1: Write the proportion equation
281,138.40 : 421,707.60 = 94,149.90 : x - Step 2: Convert to fraction form
281,138.40/421,707.60 = 94,149.90/x - Step 3: Cross multiply
281,138.40x = 421,707.60 × 94,149.90 - Step 4: Simplify right side
281,138.40x = 39,703,728,369.24 - Step 5: Solve for x
x = 39,703,728,369.24/281,138.40 - Step 6: Final answer
x = 141,224.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.