Finding the Fourth Proportional to 207.44, 311.11 and 63.12
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Solution
The fourth proportional to 207.44, 311.11 and 63.12 is: 94.66
Step by Step Solution
- Step 1: Write the proportion equation
207.44 : 311.11 = 63.12 : x - Step 2: Convert to fraction form
207.44/311.11 = 63.12/x - Step 3: Cross multiply
207.44x = 311.11 × 63.12 - Step 4: Simplify right side
207.44x = 19,637.26 - Step 5: Solve for x
x = 19,637.26/207.44 - Step 6: Final answer
x = 94.66
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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.