Finding the Fourth Proportional to 381,815.14, 526,906.12 and 212,049.26
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Solution
The fourth proportional to 381,815.14, 526,906.12 and 212,049.26 is: 292,628.66
Step by Step Solution
- Step 1: Write the proportion equation
381,815.14 : 526,906.12 = 212,049.26 : x - Step 2: Convert to fraction form
381,815.14/526,906.12 = 212,049.26/x - Step 3: Cross multiply
381,815.14x = 526,906.12 × 212,049.26 - Step 4: Simplify right side
381,815.14x = 111,730,052,835.47 - Step 5: Solve for x
x = 111,730,052,835.47/381,815.14 - Step 6: Final answer
x = 292,628.66
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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.