Finding the Fourth Proportional to 266.97, 400.44 and 84.39
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Solution
The fourth proportional to 266.97, 400.44 and 84.39 is: 126.58
Step by Step Solution
- Step 1: Write the proportion equation
266.97 : 400.44 = 84.39 : x - Step 2: Convert to fraction form
266.97/400.44 = 84.39/x - Step 3: Cross multiply
266.97x = 400.44 × 84.39 - Step 4: Simplify right side
266.97x = 33,793.13 - Step 5: Solve for x
x = 33,793.13/266.97 - Step 6: Final answer
x = 126.58
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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.