Finding the Fourth Proportional to 446.25, 615.48 and 328.68
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Solution
The fourth proportional to 446.25, 615.48 and 328.68 is: 453.32
Step by Step Solution
- Step 1: Write the proportion equation
446.25 : 615.48 = 328.68 : x - Step 2: Convert to fraction form
446.25/615.48 = 328.68/x - Step 3: Cross multiply
446.25x = 615.48 × 328.68 - Step 4: Simplify right side
446.25x = 202,295.97 - Step 5: Solve for x
x = 202,295.97/446.25 - Step 6: Final answer
x = 453.32
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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.