Finding the Fourth Proportional to 330,173.80, 495,260.70 and 80,855.80
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Solution
The fourth proportional to 330,173.80, 495,260.70 and 80,855.80 is: 121,283.70
Step by Step Solution
- Step 1: Write the proportion equation
330,173.80 : 495,260.70 = 80,855.80 : x - Step 2: Convert to fraction form
330,173.80/495,260.70 = 80,855.80/x - Step 3: Cross multiply
330,173.80x = 495,260.70 × 80,855.80 - Step 4: Simplify right side
330,173.80x = 40,044,700,107.06 - Step 5: Solve for x
x = 40,044,700,107.06/330,173.80 - Step 6: Final answer
x = 121,283.70
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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.