Finding the Fourth Proportional to 311,867.32, 430,278.68 and 190,882.48
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Solution
The fourth proportional to 311,867.32, 430,278.68 and 190,882.48 is: 263,357.70
Step by Step Solution
- Step 1: Write the proportion equation
311,867.32 : 430,278.68 = 190,882.48 : x - Step 2: Convert to fraction form
311,867.32/430,278.68 = 190,882.48/x - Step 3: Cross multiply
311,867.32x = 430,278.68 × 190,882.48 - Step 4: Simplify right side
311,867.32x = 82,132,661,529.53 - Step 5: Solve for x
x = 82,132,661,529.53/311,867.32 - Step 6: Final answer
x = 263,357.70
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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.