Finding the Fourth Proportional to 306,744.70, 423,198.14 and 177,612.70
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Solution
The fourth proportional to 306,744.70, 423,198.14 and 177,612.70 is: 245,042.10
Step by Step Solution
- Step 1: Write the proportion equation
306,744.70 : 423,198.14 = 177,612.70 : x - Step 2: Convert to fraction form
306,744.70/423,198.14 = 177,612.70/x - Step 3: Cross multiply
306,744.70x = 423,198.14 × 177,612.70 - Step 4: Simplify right side
306,744.70x = 75,165,364,280.38 - Step 5: Solve for x
x = 75,165,364,280.38/306,744.70 - Step 6: Final answer
x = 245,042.10
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.