Finding the Fourth Proportional to 266.21, 366.08 and 213.09
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Solution
The fourth proportional to 266.21, 366.08 and 213.09 is: 293.03
Step by Step Solution
- Step 1: Write the proportion equation
266.21 : 366.08 = 213.09 : x - Step 2: Convert to fraction form
266.21/366.08 = 213.09/x - Step 3: Cross multiply
266.21x = 366.08 × 213.09 - Step 4: Simplify right side
266.21x = 78,007.99 - Step 5: Solve for x
x = 78,007.99/266.21 - Step 6: Final answer
x = 293.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.