Finding the Fourth Proportional to 395,428.17, 545,691.39 and 214,140.39
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Solution
The fourth proportional to 395,428.17, 545,691.39 and 214,140.39 is: 295,514.02
Step by Step Solution
- Step 1: Write the proportion equation
395,428.17 : 545,691.39 = 214,140.39 : x - Step 2: Convert to fraction form
395,428.17/545,691.39 = 214,140.39/x - Step 3: Cross multiply
395,428.17x = 545,691.39 × 214,140.39 - Step 4: Simplify right side
395,428.17x = 116,854,567,074.24 - Step 5: Solve for x
x = 116,854,567,074.24/395,428.17 - Step 6: Final answer
x = 295,514.02
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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.