Finding the Fourth Proportional to 192.68, 289.08 and 84.44
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Solution
The fourth proportional to 192.68, 289.08 and 84.44 is: 126.68
Step by Step Solution
- Step 1: Write the proportion equation
192.68 : 289.08 = 84.44 : x - Step 2: Convert to fraction form
192.68/289.08 = 84.44/x - Step 3: Cross multiply
192.68x = 289.08 × 84.44 - Step 4: Simplify right side
192.68x = 24,408.47 - Step 5: Solve for x
x = 24,408.47/192.68 - Step 6: Final answer
x = 126.68
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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.