Finding the Fourth Proportional to 121.10, 181.62 and 34.44
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Solution
The fourth proportional to 121.10, 181.62 and 34.44 is: 51.65
Step by Step Solution
- Step 1: Write the proportion equation
121.10 : 181.62 = 34.44 : x - Step 2: Convert to fraction form
121.10/181.62 = 34.44/x - Step 3: Cross multiply
121.10x = 181.62 × 34.44 - Step 4: Simplify right side
121.10x = 6,254.99 - Step 5: Solve for x
x = 6,254.99/121.10 - Step 6: Final answer
x = 51.65
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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.