Finding the Fourth Proportional to 213.84, 295.08 and 135.18
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Solution
The fourth proportional to 213.84, 295.08 and 135.18 is: 186.54
Step by Step Solution
- Step 1: Write the proportion equation
213.84 : 295.08 = 135.18 : x - Step 2: Convert to fraction form
213.84/295.08 = 135.18/x - Step 3: Cross multiply
213.84x = 295.08 × 135.18 - Step 4: Simplify right side
213.84x = 39,888.91 - Step 5: Solve for x
x = 39,888.91/213.84 - Step 6: Final answer
x = 186.54
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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.