Finding the Fourth Proportional to 207.68, 311.18 and 156.06
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Solution
The fourth proportional to 207.68, 311.18 and 156.06 is: 233.84
Step by Step Solution
- Step 1: Write the proportion equation
207.68 : 311.18 = 156.06 : x - Step 2: Convert to fraction form
207.68/311.18 = 156.06/x - Step 3: Cross multiply
207.68x = 311.18 × 156.06 - Step 4: Simplify right side
207.68x = 48,561.97 - Step 5: Solve for x
x = 48,561.97/207.68 - Step 6: Final answer
x = 233.84
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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.