Finding the Fourth Proportional to 192,373.91, 288,405.21 and 80,138.44
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Solution
The fourth proportional to 192,373.91, 288,405.21 and 80,138.44 is: 120,142.82
Step by Step Solution
- Step 1: Write the proportion equation
192,373.91 : 288,405.21 = 80,138.44 : x - Step 2: Convert to fraction form
192,373.91/288,405.21 = 80,138.44/x - Step 3: Cross multiply
192,373.91x = 288,405.21 × 80,138.44 - Step 4: Simplify right side
192,373.91x = 23,112,343,523.51 - Step 5: Solve for x
x = 23,112,343,523.51/192,373.91 - Step 6: Final answer
x = 120,142.82
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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.