Finding the Fourth Proportional to 193.24, 289.86 and 84.92
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Solution
The fourth proportional to 193.24, 289.86 and 84.92 is: 127.38
Step by Step Solution
- Step 1: Write the proportion equation
193.24 : 289.86 = 84.92 : x - Step 2: Convert to fraction form
193.24/289.86 = 84.92/x - Step 3: Cross multiply
193.24x = 289.86 × 84.92 - Step 4: Simplify right side
193.24x = 24,614.91 - Step 5: Solve for x
x = 24,614.91/193.24 - Step 6: Final answer
x = 127.38
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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.