Finding the Fourth Proportional to 261.99, 360.92 and 213.19
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Solution
The fourth proportional to 261.99, 360.92 and 213.19 is: 293.69
Step by Step Solution
- Step 1: Write the proportion equation
261.99 : 360.92 = 213.19 : x - Step 2: Convert to fraction form
261.99/360.92 = 213.19/x - Step 3: Cross multiply
261.99x = 360.92 × 213.19 - Step 4: Simplify right side
261.99x = 76,944.17 - Step 5: Solve for x
x = 76,944.17/261.99 - Step 6: Final answer
x = 293.69
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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.