Finding the Fourth Proportional to 381,440.16, 526,369.68 and 211,672.80
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Solution
The fourth proportional to 381,440.16, 526,369.68 and 211,672.80 is: 292,098.62
Step by Step Solution
- Step 1: Write the proportion equation
381,440.16 : 526,369.68 = 211,672.80 : x - Step 2: Convert to fraction form
381,440.16/526,369.68 = 211,672.80/x - Step 3: Cross multiply
381,440.16x = 526,369.68 × 211,672.80 - Step 4: Simplify right side
381,440.16x = 111,418,144,000.70 - Step 5: Solve for x
x = 111,418,144,000.70/381,440.16 - Step 6: Final answer
x = 292,098.62
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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.