Finding the Fourth Proportional to 193.17, 289.74 and 84.96
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Solution
The fourth proportional to 193.17, 289.74 and 84.96 is: 127.43
Step by Step Solution
- Step 1: Write the proportion equation
193.17 : 289.74 = 84.96 : x - Step 2: Convert to fraction form
193.17/289.74 = 84.96/x - Step 3: Cross multiply
193.17x = 289.74 × 84.96 - Step 4: Simplify right side
193.17x = 24,616.31 - Step 5: Solve for x
x = 24,616.31/193.17 - Step 6: Final answer
x = 127.43
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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.