Finding the Fourth Proportional to 395,427.18, 545,689.53 and 214,139.12
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Solution
The fourth proportional to 395,427.18, 545,689.53 and 214,139.12 is: 295,511.99
Step by Step Solution
- Step 1: Write the proportion equation
395,427.18 : 545,689.53 = 214,139.12 : x - Step 2: Convert to fraction form
395,427.18/545,689.53 = 214,139.12/x - Step 3: Cross multiply
395,427.18x = 545,689.53 × 214,139.12 - Step 4: Simplify right side
395,427.18x = 116,853,473,018.97 - Step 5: Solve for x
x = 116,853,473,018.97/395,427.18 - Step 6: Final answer
x = 295,511.99
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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.