Finding the Fourth Proportional to 307.99, 461.67 and 163.81
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Solution
The fourth proportional to 307.99, 461.67 and 163.81 is: 245.55
Step by Step Solution
- Step 1: Write the proportion equation
307.99 : 461.67 = 163.81 : x - Step 2: Convert to fraction form
307.99/461.67 = 163.81/x - Step 3: Cross multiply
307.99x = 461.67 × 163.81 - Step 4: Simplify right side
307.99x = 75,626.16 - Step 5: Solve for x
x = 75,626.16/307.99 - Step 6: Final answer
x = 245.55
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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.