Finding the Fourth Proportional to 193.44, 289.44 and 129
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Solution
The fourth proportional to 193.44, 289.44 and 129 is: 193.02
Step by Step Solution
- Step 1: Write the proportion equation
193.44 : 289.44 = 129 : x - Step 2: Convert to fraction form
193.44/289.44 = 129/x - Step 3: Cross multiply
193.44x = 289.44 × 129 - Step 4: Simplify right side
193.44x = 37,337.76 - Step 5: Solve for x
x = 37,337.76/193.44 - Step 6: Final answer
x = 193.02
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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.