Finding the Fourth Proportional to 216.99, 325.50 and 108.75
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Solution
The fourth proportional to 216.99, 325.50 and 108.75 is: 163.13
Step by Step Solution
- Step 1: Write the proportion equation
216.99 : 325.50 = 108.75 : x - Step 2: Convert to fraction form
216.99/325.50 = 108.75/x - Step 3: Cross multiply
216.99x = 325.50 × 108.75 - Step 4: Simplify right side
216.99x = 35,398.13 - Step 5: Solve for x
x = 35,398.13/216.99 - Step 6: Final answer
x = 163.13
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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.