Finding the Fourth Proportional to 207.39, 286.02 and 163.65
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Solution
The fourth proportional to 207.39, 286.02 and 163.65 is: 225.70
Step by Step Solution
- Step 1: Write the proportion equation
207.39 : 286.02 = 163.65 : x - Step 2: Convert to fraction form
207.39/286.02 = 163.65/x - Step 3: Cross multiply
207.39x = 286.02 × 163.65 - Step 4: Simplify right side
207.39x = 46,807.17 - Step 5: Solve for x
x = 46,807.17/207.39 - Step 6: Final answer
x = 225.70
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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.