Finding the Fourth Proportional to 423.70, 635.11 and 163.63
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Solution
The fourth proportional to 423.70, 635.11 and 163.63 is: 245.27
Step by Step Solution
- Step 1: Write the proportion equation
423.70 : 635.11 = 163.63 : x - Step 2: Convert to fraction form
423.70/635.11 = 163.63/x - Step 3: Cross multiply
423.70x = 635.11 × 163.63 - Step 4: Simplify right side
423.70x = 103,921.67 - Step 5: Solve for x
x = 103,921.67/423.70 - Step 6: Final answer
x = 245.27
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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.