Finding the Fourth Proportional to 218.23, 301.18 and 124.99
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Solution
The fourth proportional to 218.23, 301.18 and 124.99 is: 172.50
Step by Step Solution
- Step 1: Write the proportion equation
218.23 : 301.18 = 124.99 : x - Step 2: Convert to fraction form
218.23/301.18 = 124.99/x - Step 3: Cross multiply
218.23x = 301.18 × 124.99 - Step 4: Simplify right side
218.23x = 37,644.49 - Step 5: Solve for x
x = 37,644.49/218.23 - Step 6: Final answer
x = 172.50
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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.