Finding the Fourth Proportional to 415,756.20, 623,817.90 and 202,405.80
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Solution
The fourth proportional to 415,756.20, 623,817.90 and 202,405.80 is: 303,698.08
Step by Step Solution
- Step 1: Write the proportion equation
415,756.20 : 623,817.90 = 202,405.80 : x - Step 2: Convert to fraction form
415,756.20/623,817.90 = 202,405.80/x - Step 3: Cross multiply
415,756.20x = 623,817.90 × 202,405.80 - Step 4: Simplify right side
415,756.20x = 126,264,361,103.82 - Step 5: Solve for x
x = 126,264,361,103.82/415,756.20 - Step 6: Final answer
x = 303,698.08
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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.