Finding the Fourth Proportional to 276,636.07, 381,754.01 and 155,778.80
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Solution
The fourth proportional to 276,636.07, 381,754.01 and 155,778.80 is: 214,972.62
Step by Step Solution
- Step 1: Write the proportion equation
276,636.07 : 381,754.01 = 155,778.80 : x - Step 2: Convert to fraction form
276,636.07/381,754.01 = 155,778.80/x - Step 3: Cross multiply
276,636.07x = 381,754.01 × 155,778.80 - Step 4: Simplify right side
276,636.07x = 59,469,180,794.09 - Step 5: Solve for x
x = 59,469,180,794.09/276,636.07 - Step 6: Final answer
x = 214,972.62
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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.