Finding the Fourth Proportional to 276,310.97, 381,307.63 and 155,453.02
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Solution
The fourth proportional to 276,310.97, 381,307.63 and 155,453.02 is: 214,524.32
Step by Step Solution
- Step 1: Write the proportion equation
276,310.97 : 381,307.63 = 155,453.02 : x - Step 2: Convert to fraction form
276,310.97/381,307.63 = 155,453.02/x - Step 3: Cross multiply
276,310.97x = 381,307.63 × 155,453.02 - Step 4: Simplify right side
276,310.97x = 59,275,423,289.76 - Step 5: Solve for x
x = 59,275,423,289.76/276,310.97 - Step 6: Final answer
x = 214,524.32
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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.