Finding the Fourth Proportional to 135.94, 205.08 and 135.68
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Solution
The fourth proportional to 135.94, 205.08 and 135.68 is: 204.69
Step by Step Solution
- Step 1: Write the proportion equation
135.94 : 205.08 = 135.68 : x - Step 2: Convert to fraction form
135.94/205.08 = 135.68/x - Step 3: Cross multiply
135.94x = 205.08 × 135.68 - Step 4: Simplify right side
135.94x = 27,825.25 - Step 5: Solve for x
x = 27,825.25/135.94 - Step 6: Final answer
x = 204.69
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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.