Finding the Fourth Proportional to 379,720.20, 569,580.30 and 202,135.80
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Solution
The fourth proportional to 379,720.20, 569,580.30 and 202,135.80 is: 303,203.70
Step by Step Solution
- Step 1: Write the proportion equation
379,720.20 : 569,580.30 = 202,135.80 : x - Step 2: Convert to fraction form
379,720.20/569,580.30 = 202,135.80/x - Step 3: Cross multiply
379,720.20x = 569,580.30 × 202,135.80 - Step 4: Simplify right side
379,720.20x = 115,132,569,604.74 - Step 5: Solve for x
x = 115,132,569,604.74/379,720.20 - Step 6: Final answer
x = 303,203.70
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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.