Finding the Fourth Proportional to 135.27, 203.63 and 122.70
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Solution
The fourth proportional to 135.27, 203.63 and 122.70 is: 184.70
Step by Step Solution
- Step 1: Write the proportion equation
135.27 : 203.63 = 122.70 : x - Step 2: Convert to fraction form
135.27/203.63 = 122.70/x - Step 3: Cross multiply
135.27x = 203.63 × 122.70 - Step 4: Simplify right side
135.27x = 24,984.79 - Step 5: Solve for x
x = 24,984.79/135.27 - Step 6: Final answer
x = 184.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.