Finding the Fourth Proportional to 193.18, 289.84 and 64.94
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Solution
The fourth proportional to 193.18, 289.84 and 64.94 is: 97.43
Step by Step Solution
- Step 1: Write the proportion equation
193.18 : 289.84 = 64.94 : x - Step 2: Convert to fraction form
193.18/289.84 = 64.94/x - Step 3: Cross multiply
193.18x = 289.84 × 64.94 - Step 4: Simplify right side
193.18x = 18,822.21 - Step 5: Solve for x
x = 18,822.21/193.18 - Step 6: Final answer
x = 97.43
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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.