Finding the Fourth Proportional to 288,212.14, 397,739.46 and 180,786.70
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Solution
The fourth proportional to 288,212.14, 397,739.46 and 180,786.70 is: 249,489.85
Step by Step Solution
- Step 1: Write the proportion equation
288,212.14 : 397,739.46 = 180,786.70 : x - Step 2: Convert to fraction form
288,212.14/397,739.46 = 180,786.70/x - Step 3: Cross multiply
288,212.14x = 397,739.46 × 180,786.70 - Step 4: Simplify right side
288,212.14x = 71,906,004,433.18 - Step 5: Solve for x
x = 71,906,004,433.18/288,212.14 - Step 6: Final answer
x = 249,489.85
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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.