Finding the Fourth Proportional to 311,711.16, 430,152.80 and 175,743.92
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Solution
The fourth proportional to 311,711.16, 430,152.80 and 175,743.92 is: 242,521.75
Step by Step Solution
- Step 1: Write the proportion equation
311,711.16 : 430,152.80 = 175,743.92 : x - Step 2: Convert to fraction form
311,711.16/430,152.80 = 175,743.92/x - Step 3: Cross multiply
311,711.16x = 430,152.80 × 175,743.92 - Step 4: Simplify right side
311,711.16x = 75,596,736,241.49 - Step 5: Solve for x
x = 75,596,736,241.49/311,711.16 - Step 6: Final answer
x = 242,521.75
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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.