Finding the Fourth Proportional to 178.70, 267.88 and 163.66
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Solution
The fourth proportional to 178.70, 267.88 and 163.66 is: 245.33
Step by Step Solution
- Step 1: Write the proportion equation
178.70 : 267.88 = 163.66 : x - Step 2: Convert to fraction form
178.70/267.88 = 163.66/x - Step 3: Cross multiply
178.70x = 267.88 × 163.66 - Step 4: Simplify right side
178.70x = 43,841.24 - Step 5: Solve for x
x = 43,841.24/178.70 - Step 6: Final answer
x = 245.33
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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.