Finding the Fourth Proportional to 178.11, 267.14 and 69.88
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Solution
The fourth proportional to 178.11, 267.14 and 69.88 is: 104.80
Step by Step Solution
- Step 1: Write the proportion equation
178.11 : 267.14 = 69.88 : x - Step 2: Convert to fraction form
178.11/267.14 = 69.88/x - Step 3: Cross multiply
178.11x = 267.14 × 69.88 - Step 4: Simplify right side
178.11x = 18,666.73 - Step 5: Solve for x
x = 18,666.73/178.11 - Step 6: Final answer
x = 104.80
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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.