Finding the Fourth Proportional to 305.21, 457.99 and 112.97
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Solution
The fourth proportional to 305.21, 457.99 and 112.97 is: 169.51
Step by Step Solution
- Step 1: Write the proportion equation
305.21 : 457.99 = 112.97 : x - Step 2: Convert to fraction form
305.21/457.99 = 112.97/x - Step 3: Cross multiply
305.21x = 457.99 × 112.97 - Step 4: Simplify right side
305.21x = 51,736.56 - Step 5: Solve for x
x = 51,736.56/305.21 - Step 6: Final answer
x = 169.51
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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.