Finding the Fourth Proportional to 207,621.70, 311,432.55 and 166,149.70
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Solution
The fourth proportional to 207,621.70, 311,432.55 and 166,149.70 is: 249,224.55
Step by Step Solution
- Step 1: Write the proportion equation
207,621.70 : 311,432.55 = 166,149.70 : x - Step 2: Convert to fraction form
207,621.70/311,432.55 = 166,149.70/x - Step 3: Cross multiply
207,621.70x = 311,432.55 × 166,149.70 - Step 4: Simplify right side
207,621.70x = 51,744,424,752.74 - Step 5: Solve for x
x = 51,744,424,752.74/207,621.70 - Step 6: Final answer
x = 249,224.55
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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.