Finding the Fourth Proportional to 266.84, 400.26 and 84.23
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Solution
The fourth proportional to 266.84, 400.26 and 84.23 is: 126.34
Step by Step Solution
- Step 1: Write the proportion equation
266.84 : 400.26 = 84.23 : x - Step 2: Convert to fraction form
266.84/400.26 = 84.23/x - Step 3: Cross multiply
266.84x = 400.26 × 84.23 - Step 4: Simplify right side
266.84x = 33,711.90 - Step 5: Solve for x
x = 33,711.90/266.84 - Step 6: Final answer
x = 126.34
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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.