Finding the Fourth Proportional to 442,198.20, 663,294.60 and 126,655.68
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Solution
The fourth proportional to 442,198.20, 663,294.60 and 126,655.68 is: 189,982.75
Step by Step Solution
- Step 1: Write the proportion equation
442,198.20 : 663,294.60 = 126,655.68 : x - Step 2: Convert to fraction form
442,198.20/663,294.60 = 126,655.68/x - Step 3: Cross multiply
442,198.20x = 663,294.60 × 126,655.68 - Step 4: Simplify right side
442,198.20x = 84,010,028,603.33 - Step 5: Solve for x
x = 84,010,028,603.33/442,198.20 - Step 6: Final answer
x = 189,982.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.