Finding the Fourth Proportional to 193.13, 289.70 and 64.88
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Solution
The fourth proportional to 193.13, 289.70 and 64.88 is: 97.32
Step by Step Solution
- Step 1: Write the proportion equation
193.13 : 289.70 = 64.88 : x - Step 2: Convert to fraction form
193.13/289.70 = 64.88/x - Step 3: Cross multiply
193.13x = 289.70 × 64.88 - Step 4: Simplify right side
193.13x = 18,793.96 - Step 5: Solve for x
x = 18,793.96/193.13 - Step 6: Final answer
x = 97.32
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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.