Finding the Fourth Proportional to 211.92, 292.58 and 133.26
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Solution
The fourth proportional to 211.92, 292.58 and 133.26 is: 183.98
Step by Step Solution
- Step 1: Write the proportion equation
211.92 : 292.58 = 133.26 : x - Step 2: Convert to fraction form
211.92/292.58 = 133.26/x - Step 3: Cross multiply
211.92x = 292.58 × 133.26 - Step 4: Simplify right side
211.92x = 38,989.21 - Step 5: Solve for x
x = 38,989.21/211.92 - Step 6: Final answer
x = 183.98
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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.