Finding the Fourth Proportional to 193.70, 290.01 and 135.79
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Solution
The fourth proportional to 193.70, 290.01 and 135.79 is: 203.30
Step by Step Solution
- Step 1: Write the proportion equation
193.70 : 290.01 = 135.79 : x - Step 2: Convert to fraction form
193.70/290.01 = 135.79/x - Step 3: Cross multiply
193.70x = 290.01 × 135.79 - Step 4: Simplify right side
193.70x = 39,380.24 - Step 5: Solve for x
x = 39,380.24/193.70 - Step 6: Final answer
x = 203.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.