Finding the Fourth Proportional to 204.40, 306.68 and 74.44
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Solution
The fourth proportional to 204.40, 306.68 and 74.44 is: 111.69
Step by Step Solution
- Step 1: Write the proportion equation
204.40 : 306.68 = 74.44 : x - Step 2: Convert to fraction form
204.40/306.68 = 74.44/x - Step 3: Cross multiply
204.40x = 306.68 × 74.44 - Step 4: Simplify right side
204.40x = 22,829.26 - Step 5: Solve for x
x = 22,829.26/204.40 - Step 6: Final answer
x = 111.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.