Finding the Fourth Proportional to 192.92, 289.19 and 84.65
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Solution
The fourth proportional to 192.92, 289.19 and 84.65 is: 126.89
Step by Step Solution
- Step 1: Write the proportion equation
192.92 : 289.19 = 84.65 : x - Step 2: Convert to fraction form
192.92/289.19 = 84.65/x - Step 3: Cross multiply
192.92x = 289.19 × 84.65 - Step 4: Simplify right side
192.92x = 24,478.70 - Step 5: Solve for x
x = 24,478.70/192.92 - Step 6: Final answer
x = 126.89
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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.