Finding the Fourth Proportional to 272,621.80, 408,932.70 and 154,523.80
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Solution
The fourth proportional to 272,621.80, 408,932.70 and 154,523.80 is: 231,785.70
Step by Step Solution
- Step 1: Write the proportion equation
272,621.80 : 408,932.70 = 154,523.80 : x - Step 2: Convert to fraction form
272,621.80/408,932.70 = 154,523.80/x - Step 3: Cross multiply
272,621.80x = 408,932.70 × 154,523.80 - Step 4: Simplify right side
272,621.80x = 63,189,834,748.26 - Step 5: Solve for x
x = 63,189,834,748.26/272,621.80 - Step 6: Final answer
x = 231,785.70
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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.