Finding the Fourth Proportional to 289,730.73, 434,720.97 and 156,704.63
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Solution
The fourth proportional to 289,730.73, 434,720.97 and 156,704.63 is: 235,124.49
Step by Step Solution
- Step 1: Write the proportion equation
289,730.73 : 434,720.97 = 156,704.63 : x - Step 2: Convert to fraction form
289,730.73/434,720.97 = 156,704.63/x - Step 3: Cross multiply
289,730.73x = 434,720.97 × 156,704.63 - Step 4: Simplify right side
289,730.73x = 68,122,788,757.09 - Step 5: Solve for x
x = 68,122,788,757.09/289,730.73 - Step 6: Final answer
x = 235,124.49
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1.5x scale
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.