Finding the Fourth Proportional to 267.21, 400.77 and 84.63
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Solution
The fourth proportional to 267.21, 400.77 and 84.63 is: 126.93
Step by Step Solution
- Step 1: Write the proportion equation
267.21 : 400.77 = 84.63 : x - Step 2: Convert to fraction form
267.21/400.77 = 84.63/x - Step 3: Cross multiply
267.21x = 400.77 × 84.63 - Step 4: Simplify right side
267.21x = 33,917.17 - Step 5: Solve for x
x = 33,917.17/267.21 - Step 6: Final answer
x = 126.93
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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.