Finding the Fourth Proportional to 397,107.76, 548,012.94 and 215,819.70
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Solution
The fourth proportional to 397,107.76, 548,012.94 and 215,819.70 is: 297,833.49
Step by Step Solution
- Step 1: Write the proportion equation
397,107.76 : 548,012.94 = 215,819.70 : x - Step 2: Convert to fraction form
397,107.76/548,012.94 = 215,819.70/x - Step 3: Cross multiply
397,107.76x = 548,012.94 × 215,819.70 - Step 4: Simplify right side
397,107.76x = 118,271,988,306.92 - Step 5: Solve for x
x = 118,271,988,306.92/397,107.76 - Step 6: Final answer
x = 297,833.49
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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.