Finding the Fourth Proportional to 194.21, 267.87 and 124.21
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Solution
The fourth proportional to 194.21, 267.87 and 124.21 is: 171.32
Step by Step Solution
- Step 1: Write the proportion equation
194.21 : 267.87 = 124.21 : x - Step 2: Convert to fraction form
194.21/267.87 = 124.21/x - Step 3: Cross multiply
194.21x = 267.87 × 124.21 - Step 4: Simplify right side
194.21x = 33,272.13 - Step 5: Solve for x
x = 33,272.13/194.21 - Step 6: Final answer
x = 171.32
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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.