Finding the Fourth Proportional to 423.24, 634.95 and 163.25
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Solution
The fourth proportional to 423.24, 634.95 and 163.25 is: 244.90
Step by Step Solution
- Step 1: Write the proportion equation
423.24 : 634.95 = 163.25 : x - Step 2: Convert to fraction form
423.24/634.95 = 163.25/x - Step 3: Cross multiply
423.24x = 634.95 × 163.25 - Step 4: Simplify right side
423.24x = 103,652.41 - Step 5: Solve for x
x = 103,652.41/423.24 - Step 6: Final answer
x = 244.90
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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.