Finding the Fourth Proportional to 193.24, 289.26 and 135.28
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Solution
The fourth proportional to 193.24, 289.26 and 135.28 is: 202.50
Step by Step Solution
- Step 1: Write the proportion equation
193.24 : 289.26 = 135.28 : x - Step 2: Convert to fraction form
193.24/289.26 = 135.28/x - Step 3: Cross multiply
193.24x = 289.26 × 135.28 - Step 4: Simplify right side
193.24x = 39,131.09 - Step 5: Solve for x
x = 39,131.09/193.24 - Step 6: Final answer
x = 202.50
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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.