Finding the Fourth Proportional to 381,234.88, 526,167.21 and 211,523.68
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Solution
The fourth proportional to 381,234.88, 526,167.21 and 211,523.68 is: 291,937.68
Step by Step Solution
- Step 1: Write the proportion equation
381,234.88 : 526,167.21 = 211,523.68 : x - Step 2: Convert to fraction form
381,234.88/526,167.21 = 211,523.68/x - Step 3: Cross multiply
381,234.88x = 526,167.21 × 211,523.68 - Step 4: Simplify right side
381,234.88x = 111,296,824,554.53 - Step 5: Solve for x
x = 111,296,824,554.53/381,234.88 - Step 6: Final answer
x = 291,937.68
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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.