Finding the Fourth Proportional to 163.79, 245.66 and 154.26
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Solution
The fourth proportional to 163.79, 245.66 and 154.26 is: 231.37
Step by Step Solution
- Step 1: Write the proportion equation
163.79 : 245.66 = 154.26 : x - Step 2: Convert to fraction form
163.79/245.66 = 154.26/x - Step 3: Cross multiply
163.79x = 245.66 × 154.26 - Step 4: Simplify right side
163.79x = 37,894.74 - Step 5: Solve for x
x = 37,894.74/163.79 - Step 6: Final answer
x = 231.37
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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.