Finding the Fourth Proportional to 193.53, 266.99 and 119.80
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Solution
The fourth proportional to 193.53, 266.99 and 119.80 is: 165.27
Step by Step Solution
- Step 1: Write the proportion equation
193.53 : 266.99 = 119.80 : x - Step 2: Convert to fraction form
193.53/266.99 = 119.80/x - Step 3: Cross multiply
193.53x = 266.99 × 119.80 - Step 4: Simplify right side
193.53x = 31,985.40 - Step 5: Solve for x
x = 31,985.40/193.53 - Step 6: Final answer
x = 165.27
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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.