Finding the Fourth Proportional to 114.20, 170.58 and 108.26
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Solution
The fourth proportional to 114.20, 170.58 and 108.26 is: 161.71
Step by Step Solution
- Step 1: Write the proportion equation
114.20 : 170.58 = 108.26 : x - Step 2: Convert to fraction form
114.20/170.58 = 108.26/x - Step 3: Cross multiply
114.20x = 170.58 × 108.26 - Step 4: Simplify right side
114.20x = 18,466.99 - Step 5: Solve for x
x = 18,466.99/114.20 - Step 6: Final answer
x = 161.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.