Finding the Fourth Proportional to 135.43, 203.01 and 121.84
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Solution
The fourth proportional to 135.43, 203.01 and 121.84 is: 182.64
Step by Step Solution
- Step 1: Write the proportion equation
135.43 : 203.01 = 121.84 : x - Step 2: Convert to fraction form
135.43/203.01 = 121.84/x - Step 3: Cross multiply
135.43x = 203.01 × 121.84 - Step 4: Simplify right side
135.43x = 24,734.74 - Step 5: Solve for x
x = 24,734.74/135.43 - Step 6: Final answer
x = 182.64
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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.