Finding the Fourth Proportional to 397,714.59, 548,857.69 and 216,438.21
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Solution
The fourth proportional to 397,714.59, 548,857.69 and 216,438.21 is: 298,691.02
Step by Step Solution
- Step 1: Write the proportion equation
397,714.59 : 548,857.69 = 216,438.21 : x - Step 2: Convert to fraction form
397,714.59/548,857.69 = 216,438.21/x - Step 3: Cross multiply
397,714.59x = 548,857.69 × 216,438.21 - Step 4: Simplify right side
397,714.59x = 118,793,775,427.24 - Step 5: Solve for x
x = 118,793,775,427.24/397,714.59 - Step 6: Final answer
x = 298,691.02
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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.