Finding the Fourth Proportional to 193.19, 289.79 and 48.92
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Solution
The fourth proportional to 193.19, 289.79 and 48.92 is: 73.37
Step by Step Solution
- Step 1: Write the proportion equation
193.19 : 289.79 = 48.92 : x - Step 2: Convert to fraction form
193.19/289.79 = 48.92/x - Step 3: Cross multiply
193.19x = 289.79 × 48.92 - Step 4: Simplify right side
193.19x = 14,174.83 - Step 5: Solve for x
x = 14,174.83/193.19 - Step 6: Final answer
x = 73.37
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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.