Finding the Fourth Proportional to 121.99, 182.77 and 44.91
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Solution
The fourth proportional to 121.99, 182.77 and 44.91 is: 67.28
Step by Step Solution
- Step 1: Write the proportion equation
121.99 : 182.77 = 44.91 : x - Step 2: Convert to fraction form
121.99/182.77 = 44.91/x - Step 3: Cross multiply
121.99x = 182.77 × 44.91 - Step 4: Simplify right side
121.99x = 8,207.06 - Step 5: Solve for x
x = 8,207.06/121.99 - Step 6: Final answer
x = 67.28
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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.