Finding the Fourth Proportional to 163.14, 225.24 and 107.99
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Solution
The fourth proportional to 163.14, 225.24 and 107.99 is: 149.10
Step by Step Solution
- Step 1: Write the proportion equation
163.14 : 225.24 = 107.99 : x - Step 2: Convert to fraction form
163.14/225.24 = 107.99/x - Step 3: Cross multiply
163.14x = 225.24 × 107.99 - Step 4: Simplify right side
163.14x = 24,323.59 - Step 5: Solve for x
x = 24,323.59/163.14 - Step 6: Final answer
x = 149.10
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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.