Finding the Fourth Proportional to 386,803.26, 533,780.09 and 214,711.26
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Solution
The fourth proportional to 386,803.26, 533,780.09 and 214,711.26 is: 296,296.87
Step by Step Solution
- Step 1: Write the proportion equation
386,803.26 : 533,780.09 = 214,711.26 : x - Step 2: Convert to fraction form
386,803.26/533,780.09 = 214,711.26/x - Step 3: Cross multiply
386,803.26x = 533,780.09 × 214,711.26 - Step 4: Simplify right side
386,803.26x = 114,608,594,613.26 - Step 5: Solve for x
x = 114,608,594,613.26/386,803.26 - Step 6: Final answer
x = 296,296.87
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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.