Finding the Fourth Proportional to 243,351.24, 335,821.20 and 135,922.80
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Solution
The fourth proportional to 243,351.24, 335,821.20 and 135,922.80 is: 187,571.50
Step by Step Solution
- Step 1: Write the proportion equation
243,351.24 : 335,821.20 = 135,922.80 : x - Step 2: Convert to fraction form
243,351.24/335,821.20 = 135,922.80/x - Step 3: Cross multiply
243,351.24x = 335,821.20 × 135,922.80 - Step 4: Simplify right side
243,351.24x = 45,645,757,803.36 - Step 5: Solve for x
x = 45,645,757,803.36/243,351.24 - Step 6: Final answer
x = 187,571.50
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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.