Finding the Fourth Proportional to 385,955.38, 532,635.42 and 213,872.88
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Solution
The fourth proportional to 385,955.38, 532,635.42 and 213,872.88 is: 295,153.99
Step by Step Solution
- Step 1: Write the proportion equation
385,955.38 : 532,635.42 = 213,872.88 : x - Step 2: Convert to fraction form
385,955.38/532,635.42 = 213,872.88/x - Step 3: Cross multiply
385,955.38x = 532,635.42 × 213,872.88 - Step 4: Simplify right side
385,955.38x = 113,916,271,965.26 - Step 5: Solve for x
x = 113,916,271,965.26/385,955.38 - Step 6: Final answer
x = 295,153.99
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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.