Finding the Fourth Proportional to 261,414.10, 392,250.87 and 103,639.06
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Solution
The fourth proportional to 261,414.10, 392,250.87 and 103,639.06 is: 155,510.02
Step by Step Solution
- Step 1: Write the proportion equation
261,414.10 : 392,250.87 = 103,639.06 : x - Step 2: Convert to fraction form
261,414.10/392,250.87 = 103,639.06/x - Step 3: Cross multiply
261,414.10x = 392,250.87 × 103,639.06 - Step 4: Simplify right side
261,414.10x = 40,652,511,450.98 - Step 5: Solve for x
x = 40,652,511,450.98/261,414.10 - Step 6: Final answer
x = 155,510.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.