Finding the Fourth Proportional to 267.14, 400.76 and 84.49
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Solution
The fourth proportional to 267.14, 400.76 and 84.49 is: 126.75
Step by Step Solution
- Step 1: Write the proportion equation
267.14 : 400.76 = 84.49 : x - Step 2: Convert to fraction form
267.14/400.76 = 84.49/x - Step 3: Cross multiply
267.14x = 400.76 × 84.49 - Step 4: Simplify right side
267.14x = 33,860.21 - Step 5: Solve for x
x = 33,860.21/267.14 - Step 6: Final answer
x = 126.75
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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.