Finding the Fourth Proportional to 358.43, 533.99 and 331.70
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Solution
The fourth proportional to 358.43, 533.99 and 331.70 is: 494.17
Step by Step Solution
- Step 1: Write the proportion equation
358.43 : 533.99 = 331.70 : x - Step 2: Convert to fraction form
358.43/533.99 = 331.70/x - Step 3: Cross multiply
358.43x = 533.99 × 331.70 - Step 4: Simplify right side
358.43x = 177,122.64 - Step 5: Solve for x
x = 177,122.64/358.43 - Step 6: Final answer
x = 494.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.