Finding the Fourth Proportional to 392.24, 588.56 and 331.08
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Solution
The fourth proportional to 392.24, 588.56 and 331.08 is: 496.79
Step by Step Solution
- Step 1: Write the proportion equation
392.24 : 588.56 = 331.08 : x - Step 2: Convert to fraction form
392.24/588.56 = 331.08/x - Step 3: Cross multiply
392.24x = 588.56 × 331.08 - Step 4: Simplify right side
392.24x = 194,858.79 - Step 5: Solve for x
x = 194,858.79/392.24 - Step 6: Final answer
x = 496.79
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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.