Finding the Fourth Proportional to 145.21, 199.99 and 134.26
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Solution
The fourth proportional to 145.21, 199.99 and 134.26 is: 184.92
Step by Step Solution
- Step 1: Write the proportion equation
145.21 : 199.99 = 134.26 : x - Step 2: Convert to fraction form
145.21/199.99 = 134.26/x - Step 3: Cross multiply
145.21x = 199.99 × 134.26 - Step 4: Simplify right side
145.21x = 26,850.70 - Step 5: Solve for x
x = 26,850.70/145.21 - Step 6: Final answer
x = 184.92
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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.