Finding the Fourth Proportional to 363.99, 501.75 and 305.18
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Solution
The fourth proportional to 363.99, 501.75 and 305.18 is: 420.68
Step by Step Solution
- Step 1: Write the proportion equation
363.99 : 501.75 = 305.18 : x - Step 2: Convert to fraction form
363.99/501.75 = 305.18/x - Step 3: Cross multiply
363.99x = 501.75 × 305.18 - Step 4: Simplify right side
363.99x = 153,121.56 - Step 5: Solve for x
x = 153,121.56/363.99 - Step 6: Final answer
x = 420.68
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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.