Finding the Fourth Proportional to 109.11, 163.68 and 34.99
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Solution
The fourth proportional to 109.11, 163.68 and 34.99 is: 52.49
Step by Step Solution
- Step 1: Write the proportion equation
109.11 : 163.68 = 34.99 : x - Step 2: Convert to fraction form
109.11/163.68 = 34.99/x - Step 3: Cross multiply
109.11x = 163.68 × 34.99 - Step 4: Simplify right side
109.11x = 5,727.16 - Step 5: Solve for x
x = 5,727.16/109.11 - Step 6: Final answer
x = 52.49
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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.