Finding the Fourth Proportional to 415,706.20, 623,742.90 and 202,355.80
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Solution
The fourth proportional to 415,706.20, 623,742.90 and 202,355.80 is: 303,623.07
Step by Step Solution
- Step 1: Write the proportion equation
415,706.20 : 623,742.90 = 202,355.80 : x - Step 2: Convert to fraction form
415,706.20/623,742.90 = 202,355.80/x - Step 3: Cross multiply
415,706.20x = 623,742.90 × 202,355.80 - Step 4: Simplify right side
415,706.20x = 126,217,993,523.82 - Step 5: Solve for x
x = 126,217,993,523.82/415,706.20 - Step 6: Final answer
x = 303,623.07
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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.