Finding the Fourth Proportional to 218.18, 302.36 and 214.08
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Solution
The fourth proportional to 218.18, 302.36 and 214.08 is: 296.68
Step by Step Solution
- Step 1: Write the proportion equation
218.18 : 302.36 = 214.08 : x - Step 2: Convert to fraction form
218.18/302.36 = 214.08/x - Step 3: Cross multiply
218.18x = 302.36 × 214.08 - Step 4: Simplify right side
218.18x = 64,729.23 - Step 5: Solve for x
x = 64,729.23/218.18 - Step 6: Final answer
x = 296.68
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.