Finding the Fourth Proportional to 170.02, 254.44 and 129.21
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Solution
The fourth proportional to 170.02, 254.44 and 129.21 is: 193.37
Step by Step Solution
- Step 1: Write the proportion equation
170.02 : 254.44 = 129.21 : x - Step 2: Convert to fraction form
170.02/254.44 = 129.21/x - Step 3: Cross multiply
170.02x = 254.44 × 129.21 - Step 4: Simplify right side
170.02x = 32,876.19 - Step 5: Solve for x
x = 32,876.19/170.02 - Step 6: Final answer
x = 193.37
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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.