Finding the Fourth Proportional to 414,119.91, 621,161.80 and 129,803.98
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Solution
The fourth proportional to 414,119.91, 621,161.80 and 129,803.98 is: 194,700.31
Step by Step Solution
- Step 1: Write the proportion equation
414,119.91 : 621,161.80 = 129,803.98 : x - Step 2: Convert to fraction form
414,119.91/621,161.80 = 129,803.98/x - Step 3: Cross multiply
414,119.91x = 621,161.80 × 129,803.98 - Step 4: Simplify right side
414,119.91x = 80,629,273,863.96 - Step 5: Solve for x
x = 80,629,273,863.96/414,119.91 - Step 6: Final answer
x = 194,700.31
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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.