Finding the Fourth Proportional to 193.76, 267.12 and 135.44
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Solution
The fourth proportional to 193.76, 267.12 and 135.44 is: 186.72
Step by Step Solution
- Step 1: Write the proportion equation
193.76 : 267.12 = 135.44 : x - Step 2: Convert to fraction form
193.76/267.12 = 135.44/x - Step 3: Cross multiply
193.76x = 267.12 × 135.44 - Step 4: Simplify right side
193.76x = 36,178.73 - Step 5: Solve for x
x = 36,178.73/193.76 - Step 6: Final answer
x = 186.72
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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.