Finding the Fourth Proportional to 408,816.81, 564,161.57 and 227,528.70
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Solution
The fourth proportional to 408,816.81, 564,161.57 and 227,528.70 is: 313,986.47
Step by Step Solution
- Step 1: Write the proportion equation
408,816.81 : 564,161.57 = 227,528.70 : x - Step 2: Convert to fraction form
408,816.81/564,161.57 = 227,528.70/x - Step 3: Cross multiply
408,816.81x = 564,161.57 × 227,528.70 - Step 4: Simplify right side
408,816.81x = 128,362,947,474.42 - Step 5: Solve for x
x = 128,362,947,474.42/408,816.81 - Step 6: Final answer
x = 313,986.47
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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.