Finding the Fourth Proportional to 216.77, 299.14 and 161.75
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Solution
The fourth proportional to 216.77, 299.14 and 161.75 is: 223.22
Step by Step Solution
- Step 1: Write the proportion equation
216.77 : 299.14 = 161.75 : x - Step 2: Convert to fraction form
216.77/299.14 = 161.75/x - Step 3: Cross multiply
216.77x = 299.14 × 161.75 - Step 4: Simplify right side
216.77x = 48,386.24 - Step 5: Solve for x
x = 48,386.24/216.77 - Step 6: Final answer
x = 223.22
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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.