Finding the Fourth Proportional to 324.23, 447.08 and 211.91
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Solution
The fourth proportional to 324.23, 447.08 and 211.91 is: 292.20
Step by Step Solution
- Step 1: Write the proportion equation
324.23 : 447.08 = 211.91 : x - Step 2: Convert to fraction form
324.23/447.08 = 211.91/x - Step 3: Cross multiply
324.23x = 447.08 × 211.91 - Step 4: Simplify right side
324.23x = 94,737.43 - Step 5: Solve for x
x = 94,737.43/324.23 - Step 6: Final answer
x = 292.20
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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.