Finding the Fourth Proportional to 160.26, 221.11 and 98.08
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Solution
The fourth proportional to 160.26, 221.11 and 98.08 is: 135.32
Step by Step Solution
- Step 1: Write the proportion equation
160.26 : 221.11 = 98.08 : x - Step 2: Convert to fraction form
160.26/221.11 = 98.08/x - Step 3: Cross multiply
160.26x = 221.11 × 98.08 - Step 4: Simplify right side
160.26x = 21,686.22 - Step 5: Solve for x
x = 21,686.22/160.26 - Step 6: Final answer
x = 135.32
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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.