Finding the Fourth Proportional to 193.79, 267.44 and 120.08
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Solution
The fourth proportional to 193.79, 267.44 and 120.08 is: 165.72
Step by Step Solution
- Step 1: Write the proportion equation
193.79 : 267.44 = 120.08 : x - Step 2: Convert to fraction form
193.79/267.44 = 120.08/x - Step 3: Cross multiply
193.79x = 267.44 × 120.08 - Step 4: Simplify right side
193.79x = 32,114.20 - Step 5: Solve for x
x = 32,114.20/193.79 - Step 6: Final answer
x = 165.72
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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.