Finding the Fourth Proportional to 193.53, 267.09 and 135.21
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Solution
The fourth proportional to 193.53, 267.09 and 135.21 is: 186.60
Step by Step Solution
- Step 1: Write the proportion equation
193.53 : 267.09 = 135.21 : x - Step 2: Convert to fraction form
193.53/267.09 = 135.21/x - Step 3: Cross multiply
193.53x = 267.09 × 135.21 - Step 4: Simplify right side
193.53x = 36,113.24 - Step 5: Solve for x
x = 36,113.24/193.53 - Step 6: Final answer
x = 186.60
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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.