Finding the Fourth Proportional to 163.13, 224.69 and 140.90
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Solution
The fourth proportional to 163.13, 224.69 and 140.90 is: 194.07
Step by Step Solution
- Step 1: Write the proportion equation
163.13 : 224.69 = 140.90 : x - Step 2: Convert to fraction form
163.13/224.69 = 140.90/x - Step 3: Cross multiply
163.13x = 224.69 × 140.90 - Step 4: Simplify right side
163.13x = 31,656.99 - Step 5: Solve for x
x = 31,656.99/163.13 - Step 6: Final answer
x = 194.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.