Finding the Fourth Proportional to 272,572.41, 408,942.36 and 139,546.05
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Solution
The fourth proportional to 272,572.41, 408,942.36 and 139,546.05 is: 209,361.95
Step by Step Solution
- Step 1: Write the proportion equation
272,572.41 : 408,942.36 = 139,546.05 : x - Step 2: Convert to fraction form
272,572.41/408,942.36 = 139,546.05/x - Step 3: Cross multiply
272,572.41x = 408,942.36 × 139,546.05 - Step 4: Simplify right side
272,572.41x = 57,066,291,015.68 - Step 5: Solve for x
x = 57,066,291,015.68/272,572.41 - Step 6: Final answer
x = 209,361.95
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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.