Finding the Fourth Proportional to 193.47, 266.99 and 119.79
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Solution
The fourth proportional to 193.47, 266.99 and 119.79 is: 165.31
Step by Step Solution
- Step 1: Write the proportion equation
193.47 : 266.99 = 119.79 : x - Step 2: Convert to fraction form
193.47/266.99 = 119.79/x - Step 3: Cross multiply
193.47x = 266.99 × 119.79 - Step 4: Simplify right side
193.47x = 31,982.13 - Step 5: Solve for x
x = 31,982.13/193.47 - Step 6: Final answer
x = 165.31
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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.