Finding the Fourth Proportional to 381,511.56, 526,510.56 and 211,745.68
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Solution
The fourth proportional to 381,511.56, 526,510.56 and 211,745.68 is: 292,222.70
Step by Step Solution
- Step 1: Write the proportion equation
381,511.56 : 526,510.56 = 211,745.68 : x - Step 2: Convert to fraction form
381,511.56/526,510.56 = 211,745.68/x - Step 3: Cross multiply
381,511.56x = 526,510.56 × 211,745.68 - Step 4: Simplify right side
381,511.56x = 111,486,336,554.38 - Step 5: Solve for x
x = 111,486,336,554.38/381,511.56 - Step 6: Final answer
x = 292,222.70
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1.5x scale
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.