Finding the Fourth Proportional to 198,649.89, 273,955.23 and 147,789.99
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Solution
The fourth proportional to 198,649.89, 273,955.23 and 147,789.99 is: 203,815.07
Step by Step Solution
- Step 1: Write the proportion equation
198,649.89 : 273,955.23 = 147,789.99 : x - Step 2: Convert to fraction form
198,649.89/273,955.23 = 147,789.99/x - Step 3: Cross multiply
198,649.89x = 273,955.23 × 147,789.99 - Step 4: Simplify right side
198,649.89x = 40,487,840,702.15 - Step 5: Solve for x
x = 40,487,840,702.15/198,649.89 - Step 6: Final answer
x = 203,815.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.