Finding the Fourth Proportional to 347,789.80, 521,684.70 and 207,821.80
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Solution
The fourth proportional to 347,789.80, 521,684.70 and 207,821.80 is: 311,732.70
Step by Step Solution
- Step 1: Write the proportion equation
347,789.80 : 521,684.70 = 207,821.80 : x - Step 2: Convert to fraction form
347,789.80/521,684.70 = 207,821.80/x - Step 3: Cross multiply
347,789.80x = 521,684.70 × 207,821.80 - Step 4: Simplify right side
347,789.80x = 108,417,453,386.46 - Step 5: Solve for x
x = 108,417,453,386.46/347,789.80 - Step 6: Final answer
x = 311,732.70
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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.