Finding the Fourth Proportional to 330,415.20, 495,622.80 and 308,107.80
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Solution
The fourth proportional to 330,415.20, 495,622.80 and 308,107.80 is: 462,161.70
Step by Step Solution
- Step 1: Write the proportion equation
330,415.20 : 495,622.80 = 308,107.80 : x - Step 2: Convert to fraction form
330,415.20/495,622.80 = 308,107.80/x - Step 3: Cross multiply
330,415.20x = 495,622.80 × 308,107.80 - Step 4: Simplify right side
330,415.20x = 152,705,250,537.84 - Step 5: Solve for x
x = 152,705,250,537.84/330,415.20 - Step 6: Final answer
x = 462,161.70
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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.