Finding the Fourth Proportional to 381,446.42, 572,179.36 and 115,215.62
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Solution
The fourth proportional to 381,446.42, 572,179.36 and 115,215.62 is: 172,826.37
Step by Step Solution
- Step 1: Write the proportion equation
381,446.42 : 572,179.36 = 115,215.62 : x - Step 2: Convert to fraction form
381,446.42/572,179.36 = 115,215.62/x - Step 3: Cross multiply
381,446.42x = 572,179.36 × 115,215.62 - Step 4: Simplify right side
381,446.42x = 65,923,999,713.60 - Step 5: Solve for x
x = 65,923,999,713.60/381,446.42 - Step 6: Final answer
x = 172,826.37
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1.5x scale
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.