Finding the Fourth Proportional to 276,281.82, 381,265.11 and 155,423.07
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Solution
The fourth proportional to 276,281.82, 381,265.11 and 155,423.07 is: 214,481.70
Step by Step Solution
- Step 1: Write the proportion equation
276,281.82 : 381,265.11 = 155,423.07 : x - Step 2: Convert to fraction form
276,281.82/381,265.11 = 155,423.07/x - Step 3: Cross multiply
276,281.82x = 381,265.11 × 155,423.07 - Step 4: Simplify right side
276,281.82x = 59,257,393,880.09 - Step 5: Solve for x
x = 59,257,393,880.09/276,281.82 - Step 6: Final answer
x = 214,481.70
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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.