Finding the Fourth Proportional to 207.99, 287.02 and 125.11
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Solution
The fourth proportional to 207.99, 287.02 and 125.11 is: 172.65
Step by Step Solution
- Step 1: Write the proportion equation
207.99 : 287.02 = 125.11 : x - Step 2: Convert to fraction form
207.99/287.02 = 125.11/x - Step 3: Cross multiply
207.99x = 287.02 × 125.11 - Step 4: Simplify right side
207.99x = 35,909.07 - Step 5: Solve for x
x = 35,909.07/207.99 - Step 6: Final answer
x = 172.65
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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.