Finding the Fourth Proportional to 400.26, 600.39 and 207.75
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Solution
The fourth proportional to 400.26, 600.39 and 207.75 is: 311.63
Step by Step Solution
- Step 1: Write the proportion equation
400.26 : 600.39 = 207.75 : x - Step 2: Convert to fraction form
400.26/600.39 = 207.75/x - Step 3: Cross multiply
400.26x = 600.39 × 207.75 - Step 4: Simplify right side
400.26x = 124,731.02 - Step 5: Solve for x
x = 124,731.02/400.26 - Step 6: Final answer
x = 311.63
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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.