Finding the Fourth Proportional to 285,147.40, 393,521.68 and 164,286.49
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Solution
The fourth proportional to 285,147.40, 393,521.68 and 164,286.49 is: 226,725.88
Step by Step Solution
- Step 1: Write the proportion equation
285,147.40 : 393,521.68 = 164,286.49 : x - Step 2: Convert to fraction form
285,147.40/393,521.68 = 164,286.49/x - Step 3: Cross multiply
285,147.40x = 393,521.68 × 164,286.49 - Step 4: Simplify right side
285,147.40x = 64,650,295,546.10 - Step 5: Solve for x
x = 64,650,295,546.10/285,147.40 - Step 6: Final answer
x = 226,725.88
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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.