Finding the Fourth Proportional to 381,426.28, 526,392.87 and 211,660.39
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Solution
The fourth proportional to 381,426.28, 526,392.87 and 211,660.39 is: 292,104.99
Step by Step Solution
- Step 1: Write the proportion equation
381,426.28 : 526,392.87 = 211,660.39 : x - Step 2: Convert to fraction form
381,426.28/526,392.87 = 211,660.39/x - Step 3: Cross multiply
381,426.28x = 526,392.87 × 211,660.39 - Step 4: Simplify right side
381,426.28x = 111,416,520,157.42 - Step 5: Solve for x
x = 111,416,520,157.42/381,426.28 - Step 6: Final answer
x = 292,104.99
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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.