Finding the Fourth Proportional to 415,708.20, 623,745.90 and 202,357.80
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Solution
The fourth proportional to 415,708.20, 623,745.90 and 202,357.80 is: 303,626.07
Step by Step Solution
- Step 1: Write the proportion equation
415,708.20 : 623,745.90 = 202,357.80 : x - Step 2: Convert to fraction form
415,708.20/623,745.90 = 202,357.80/x - Step 3: Cross multiply
415,708.20x = 623,745.90 × 202,357.80 - Step 4: Simplify right side
415,708.20x = 126,219,848,083.02 - Step 5: Solve for x
x = 126,219,848,083.02/415,708.20 - Step 6: Final answer
x = 303,626.07
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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.