Finding the Fourth Proportional to 434,586.20, 651,660.60 and 257,147.60
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Solution
The fourth proportional to 434,586.20, 651,660.60 and 257,147.60 is: 385,591.99
Step by Step Solution
- Step 1: Write the proportion equation
434,586.20 : 651,660.60 = 257,147.60 : x - Step 2: Convert to fraction form
434,586.20/651,660.60 = 257,147.60/x - Step 3: Cross multiply
434,586.20x = 651,660.60 × 257,147.60 - Step 4: Simplify right side
434,586.20x = 167,572,959,304.56 - Step 5: Solve for x
x = 167,572,959,304.56/434,586.20 - Step 6: Final answer
x = 385,591.99
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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.