Finding the Fourth Proportional to 363.99, 502.34 and 305.67
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Solution
The fourth proportional to 363.99, 502.34 and 305.67 is: 421.85
Step by Step Solution
- Step 1: Write the proportion equation
363.99 : 502.34 = 305.67 : x - Step 2: Convert to fraction form
363.99/502.34 = 305.67/x - Step 3: Cross multiply
363.99x = 502.34 × 305.67 - Step 4: Simplify right side
363.99x = 153,548.74 - Step 5: Solve for x
x = 153,548.74/363.99 - Step 6: Final answer
x = 421.85
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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.