Finding the Fourth Proportional to 305.93, 422.47 and 207.97
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Solution
The fourth proportional to 305.93, 422.47 and 207.97 is: 287.19
Step by Step Solution
- Step 1: Write the proportion equation
305.93 : 422.47 = 207.97 : x - Step 2: Convert to fraction form
305.93/422.47 = 207.97/x - Step 3: Cross multiply
305.93x = 422.47 × 207.97 - Step 4: Simplify right side
305.93x = 87,859.12 - Step 5: Solve for x
x = 87,859.12/305.93 - Step 6: Final answer
x = 287.19
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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.