Finding the Fourth Proportional to 484,431.20, 726,711.60 and 168,984.80
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Solution
The fourth proportional to 484,431.20, 726,711.60 and 168,984.80 is: 253,499.80
Step by Step Solution
- Step 1: Write the proportion equation
484,431.20 : 726,711.60 = 168,984.80 : x - Step 2: Convert to fraction form
484,431.20/726,711.60 = 168,984.80/x - Step 3: Cross multiply
484,431.20x = 726,711.60 × 168,984.80 - Step 4: Simplify right side
484,431.20x = 122,803,214,383.68 - Step 5: Solve for x
x = 122,803,214,383.68/484,431.20 - Step 6: Final answer
x = 253,499.80
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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.