Finding the Fourth Proportional to 400.70, 600.84 and 126.68
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Solution
The fourth proportional to 400.70, 600.84 and 126.68 is: 189.95
Step by Step Solution
- Step 1: Write the proportion equation
400.70 : 600.84 = 126.68 : x - Step 2: Convert to fraction form
400.70/600.84 = 126.68/x - Step 3: Cross multiply
400.70x = 600.84 × 126.68 - Step 4: Simplify right side
400.70x = 76,114.41 - Step 5: Solve for x
x = 76,114.41/400.70 - Step 6: Final answer
x = 189.95
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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.