Finding the Fourth Proportional to 400.07, 600.19 and 122.40
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Solution
The fourth proportional to 400.07, 600.19 and 122.40 is: 183.63
Step by Step Solution
- Step 1: Write the proportion equation
400.07 : 600.19 = 122.40 : x - Step 2: Convert to fraction form
400.07/600.19 = 122.40/x - Step 3: Cross multiply
400.07x = 600.19 × 122.40 - Step 4: Simplify right side
400.07x = 73,463.26 - Step 5: Solve for x
x = 73,463.26/400.07 - Step 6: Final answer
x = 183.63
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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.