Finding the Fourth Proportional to 394.21, 543.68 and 332.19
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Solution
The fourth proportional to 394.21, 543.68 and 332.19 is: 458.14
Step by Step Solution
- Step 1: Write the proportion equation
394.21 : 543.68 = 332.19 : x - Step 2: Convert to fraction form
394.21/543.68 = 332.19/x - Step 3: Cross multiply
394.21x = 543.68 × 332.19 - Step 4: Simplify right side
394.21x = 180,605.06 - Step 5: Solve for x
x = 180,605.06/394.21 - Step 6: Final answer
x = 458.14
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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.