Finding the Fourth Proportional to 207.40, 311.01 and 63.09
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Solution
The fourth proportional to 207.40, 311.01 and 63.09 is: 94.61
Step by Step Solution
- Step 1: Write the proportion equation
207.40 : 311.01 = 63.09 : x - Step 2: Convert to fraction form
207.40/311.01 = 63.09/x - Step 3: Cross multiply
207.40x = 311.01 × 63.09 - Step 4: Simplify right side
207.40x = 19,621.62 - Step 5: Solve for x
x = 19,621.62/207.40 - Step 6: Final answer
x = 94.61
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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.