Finding the Fourth Proportional to 121.97, 182.84 and 44.91
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Solution
The fourth proportional to 121.97, 182.84 and 44.91 is: 67.32
Step by Step Solution
- Step 1: Write the proportion equation
121.97 : 182.84 = 44.91 : x - Step 2: Convert to fraction form
121.97/182.84 = 44.91/x - Step 3: Cross multiply
121.97x = 182.84 × 44.91 - Step 4: Simplify right side
121.97x = 8,211.12 - Step 5: Solve for x
x = 8,211.12/121.97 - Step 6: Final answer
x = 67.32
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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.