Finding the Fourth Proportional to 211.99, 292.08 and 162.70
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Solution
The fourth proportional to 211.99, 292.08 and 162.70 is: 224.17
Step by Step Solution
- Step 1: Write the proportion equation
211.99 : 292.08 = 162.70 : x - Step 2: Convert to fraction form
211.99/292.08 = 162.70/x - Step 3: Cross multiply
211.99x = 292.08 × 162.70 - Step 4: Simplify right side
211.99x = 47,521.42 - Step 5: Solve for x
x = 47,521.42/211.99 - Step 6: Final answer
x = 224.17
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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.