Finding the Fourth Proportional to 192.77, 266.21 and 122.96
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Solution
The fourth proportional to 192.77, 266.21 and 122.96 is: 169.80
Step by Step Solution
- Step 1: Write the proportion equation
192.77 : 266.21 = 122.96 : x - Step 2: Convert to fraction form
192.77/266.21 = 122.96/x - Step 3: Cross multiply
192.77x = 266.21 × 122.96 - Step 4: Simplify right side
192.77x = 32,731.24 - Step 5: Solve for x
x = 32,731.24/192.77 - Step 6: Final answer
x = 169.80
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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.