Finding the Fourth Proportional to 160.11, 239.99 and 121.64
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Solution
The fourth proportional to 160.11, 239.99 and 121.64 is: 182.32
Step by Step Solution
- Step 1: Write the proportion equation
160.11 : 239.99 = 121.64 : x - Step 2: Convert to fraction form
160.11/239.99 = 121.64/x - Step 3: Cross multiply
160.11x = 239.99 × 121.64 - Step 4: Simplify right side
160.11x = 29,190.58 - Step 5: Solve for x
x = 29,190.58/160.11 - Step 6: Final answer
x = 182.32
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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.