Finding the Fourth Proportional to 146.23, 201.58 and 129.84
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Solution
The fourth proportional to 146.23, 201.58 and 129.84 is: 178.99
Step by Step Solution
- Step 1: Write the proportion equation
146.23 : 201.58 = 129.84 : x - Step 2: Convert to fraction form
146.23/201.58 = 129.84/x - Step 3: Cross multiply
146.23x = 201.58 × 129.84 - Step 4: Simplify right side
146.23x = 26,173.15 - Step 5: Solve for x
x = 26,173.15/146.23 - Step 6: Final answer
x = 178.99
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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.