Finding the Fourth Proportional to 192.99, 289.17 and 138.84
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Solution
The fourth proportional to 192.99, 289.17 and 138.84 is: 208.03
Step by Step Solution
- Step 1: Write the proportion equation
192.99 : 289.17 = 138.84 : x - Step 2: Convert to fraction form
192.99/289.17 = 138.84/x - Step 3: Cross multiply
192.99x = 289.17 × 138.84 - Step 4: Simplify right side
192.99x = 40,148.36 - Step 5: Solve for x
x = 40,148.36/192.99 - Step 6: Final answer
x = 208.03
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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.