Finding the Fourth Proportional to 313,872.14, 433,177.42 and 177,891.49
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Solution
The fourth proportional to 313,872.14, 433,177.42 and 177,891.49 is: 245,509.45
Step by Step Solution
- Step 1: Write the proportion equation
313,872.14 : 433,177.42 = 177,891.49 : x - Step 2: Convert to fraction form
313,872.14/433,177.42 = 177,891.49/x - Step 3: Cross multiply
313,872.14x = 433,177.42 × 177,891.49 - Step 4: Simplify right side
313,872.14x = 77,058,576,678.16 - Step 5: Solve for x
x = 77,058,576,678.16/313,872.14 - Step 6: Final answer
x = 245,509.45
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1.5x scale
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.