Finding the Fourth Proportional to 192.99, 266.21 and 163.68
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Solution
The fourth proportional to 192.99, 266.21 and 163.68 is: 225.78
Step by Step Solution
- Step 1: Write the proportion equation
192.99 : 266.21 = 163.68 : x - Step 2: Convert to fraction form
192.99/266.21 = 163.68/x - Step 3: Cross multiply
192.99x = 266.21 × 163.68 - Step 4: Simplify right side
192.99x = 43,572.43 - Step 5: Solve for x
x = 43,572.43/192.99 - Step 6: Final answer
x = 225.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.