Finding the Fourth Proportional to 275,872.99, 380,738.73 and 155,011.64
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Solution
The fourth proportional to 275,872.99, 380,738.73 and 155,011.64 is: 213,935.17
Step by Step Solution
- Step 1: Write the proportion equation
275,872.99 : 380,738.73 = 155,011.64 : x - Step 2: Convert to fraction form
275,872.99/380,738.73 = 155,011.64/x - Step 3: Cross multiply
275,872.99x = 380,738.73 × 155,011.64 - Step 4: Simplify right side
275,872.99x = 59,018,934,896.13 - Step 5: Solve for x
x = 59,018,934,896.13/275,872.99 - Step 6: Final answer
x = 213,935.17
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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.