Finding the Fourth Proportional to 267.67, 401.21 and 113.63
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Solution
The fourth proportional to 267.67, 401.21 and 113.63 is: 170.32
Step by Step Solution
- Step 1: Write the proportion equation
267.67 : 401.21 = 113.63 : x - Step 2: Convert to fraction form
267.67/401.21 = 113.63/x - Step 3: Cross multiply
267.67x = 401.21 × 113.63 - Step 4: Simplify right side
267.67x = 45,588.92 - Step 5: Solve for x
x = 45,588.92/267.67 - Step 6: Final answer
x = 170.32
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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.