Finding the Fourth Proportional to 378.11, 566.87 and 172.62
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Solution
The fourth proportional to 378.11, 566.87 and 172.62 is: 258.79
Step by Step Solution
- Step 1: Write the proportion equation
378.11 : 566.87 = 172.62 : x - Step 2: Convert to fraction form
378.11/566.87 = 172.62/x - Step 3: Cross multiply
378.11x = 566.87 × 172.62 - Step 4: Simplify right side
378.11x = 97,852.24 - Step 5: Solve for x
x = 97,852.24/378.11 - Step 6: Final answer
x = 258.79
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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.