Finding the Fourth Proportional to 218.24, 301.15 and 119.99
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Solution
The fourth proportional to 218.24, 301.15 and 119.99 is: 165.57
Step by Step Solution
- Step 1: Write the proportion equation
218.24 : 301.15 = 119.99 : x - Step 2: Convert to fraction form
218.24/301.15 = 119.99/x - Step 3: Cross multiply
218.24x = 301.15 × 119.99 - Step 4: Simplify right side
218.24x = 36,134.99 - Step 5: Solve for x
x = 36,134.99/218.24 - Step 6: Final answer
x = 165.57
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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.