Finding the Fourth Proportional to 207.28, 310.91 and 174.99
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Solution
The fourth proportional to 207.28, 310.91 and 174.99 is: 262.47
Step by Step Solution
- Step 1: Write the proportion equation
207.28 : 310.91 = 174.99 : x - Step 2: Convert to fraction form
207.28/310.91 = 174.99/x - Step 3: Cross multiply
207.28x = 310.91 × 174.99 - Step 4: Simplify right side
207.28x = 54,405.02 - Step 5: Solve for x
x = 54,405.02/207.28 - Step 6: Final answer
x = 262.47
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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.