Finding the Fourth Proportional to 207.75, 285.99 and 179.96
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Solution
The fourth proportional to 207.75, 285.99 and 179.96 is: 247.73
Step by Step Solution
- Step 1: Write the proportion equation
207.75 : 285.99 = 179.96 : x - Step 2: Convert to fraction form
207.75/285.99 = 179.96/x - Step 3: Cross multiply
207.75x = 285.99 × 179.96 - Step 4: Simplify right side
207.75x = 51,466.76 - Step 5: Solve for x
x = 51,466.76/207.75 - Step 6: Final answer
x = 247.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.