Finding the Fourth Proportional to 193.97, 267.66 and 115.28
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Solution
The fourth proportional to 193.97, 267.66 and 115.28 is: 159.07
Step by Step Solution
- Step 1: Write the proportion equation
193.97 : 267.66 = 115.28 : x - Step 2: Convert to fraction form
193.97/267.66 = 115.28/x - Step 3: Cross multiply
193.97x = 267.66 × 115.28 - Step 4: Simplify right side
193.97x = 30,855.18 - Step 5: Solve for x
x = 30,855.18/193.97 - Step 6: Final answer
x = 159.07
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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.