Finding the Fourth Proportional to 400.24, 600.21 and 140.19
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Solution
The fourth proportional to 400.24, 600.21 and 140.19 is: 210.23
Step by Step Solution
- Step 1: Write the proportion equation
400.24 : 600.21 = 140.19 : x - Step 2: Convert to fraction form
400.24/600.21 = 140.19/x - Step 3: Cross multiply
400.24x = 600.21 × 140.19 - Step 4: Simplify right side
400.24x = 84,143.44 - Step 5: Solve for x
x = 84,143.44/400.24 - Step 6: Final answer
x = 210.23
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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.