Finding the Fourth Proportional to 203,829.80, 305,744.70 and 141,621.80
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Solution
The fourth proportional to 203,829.80, 305,744.70 and 141,621.80 is: 212,432.70
Step by Step Solution
- Step 1: Write the proportion equation
203,829.80 : 305,744.70 = 141,621.80 : x - Step 2: Convert to fraction form
203,829.80/305,744.70 = 141,621.80/x - Step 3: Cross multiply
203,829.80x = 305,744.70 × 141,621.80 - Step 4: Simplify right side
203,829.80x = 43,300,114,754.46 - Step 5: Solve for x
x = 43,300,114,754.46/203,829.80 - Step 6: Final answer
x = 212,432.70
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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.