Finding the Fourth Proportional to 489,167.20, 733,750.80 and 209,231.20
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Solution
The fourth proportional to 489,167.20, 733,750.80 and 209,231.20 is: 313,846.80
Step by Step Solution
- Step 1: Write the proportion equation
489,167.20 : 733,750.80 = 209,231.20 : x - Step 2: Convert to fraction form
489,167.20/733,750.80 = 209,231.20/x - Step 3: Cross multiply
489,167.20x = 733,750.80 × 209,231.20 - Step 4: Simplify right side
489,167.20x = 153,523,560,384.96 - Step 5: Solve for x
x = 153,523,560,384.96/489,167.20 - Step 6: Final answer
x = 313,846.80
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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.