Finding the Fourth Proportional to 345,812.08, 518,571.24 and 135,416.56
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Solution
The fourth proportional to 345,812.08, 518,571.24 and 135,416.56 is: 203,067.32
Step by Step Solution
- Step 1: Write the proportion equation
345,812.08 : 518,571.24 = 135,416.56 : x - Step 2: Convert to fraction form
345,812.08/518,571.24 = 135,416.56/x - Step 3: Cross multiply
345,812.08x = 518,571.24 × 135,416.56 - Step 4: Simplify right side
345,812.08x = 70,223,133,435.73 - Step 5: Solve for x
x = 70,223,133,435.73/345,812.08 - Step 6: Final answer
x = 203,067.32
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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.