Finding the Fourth Proportional to 311,963.92, 430,510.20 and 168,723.98
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Solution
The fourth proportional to 311,963.92, 430,510.20 and 168,723.98 is: 232,839.09
Step by Step Solution
- Step 1: Write the proportion equation
311,963.92 : 430,510.20 = 168,723.98 : x - Step 2: Convert to fraction form
311,963.92/430,510.20 = 168,723.98/x - Step 3: Cross multiply
311,963.92x = 430,510.20 × 168,723.98 - Step 4: Simplify right side
311,963.92x = 72,637,394,374.60 - Step 5: Solve for x
x = 72,637,394,374.60/311,963.92 - Step 6: Final answer
x = 232,839.09
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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.