Finding the Fourth Proportional to 266.44, 399.76 and 122.18
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Solution
The fourth proportional to 266.44, 399.76 and 122.18 is: 183.32
Step by Step Solution
- Step 1: Write the proportion equation
266.44 : 399.76 = 122.18 : x - Step 2: Convert to fraction form
266.44/399.76 = 122.18/x - Step 3: Cross multiply
266.44x = 399.76 × 122.18 - Step 4: Simplify right side
266.44x = 48,842.68 - Step 5: Solve for x
x = 48,842.68/266.44 - Step 6: Final answer
x = 183.32
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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.