Finding the Fourth Proportional to 163.43, 245.54 and 134.99
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Solution
The fourth proportional to 163.43, 245.54 and 134.99 is: 202.81
Step by Step Solution
- Step 1: Write the proportion equation
163.43 : 245.54 = 134.99 : x - Step 2: Convert to fraction form
163.43/245.54 = 134.99/x - Step 3: Cross multiply
163.43x = 245.54 × 134.99 - Step 4: Simplify right side
163.43x = 33,145.44 - Step 5: Solve for x
x = 33,145.44/163.43 - Step 6: Final answer
x = 202.81
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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.