Finding the Fourth Proportional to 275,406.24, 380,064.24 and 154,573.68
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Solution
The fourth proportional to 275,406.24, 380,064.24 and 154,573.68 is: 213,313.72
Step by Step Solution
- Step 1: Write the proportion equation
275,406.24 : 380,064.24 = 154,573.68 : x - Step 2: Convert to fraction form
275,406.24/380,064.24 = 154,573.68/x - Step 3: Cross multiply
275,406.24x = 380,064.24 × 154,573.68 - Step 4: Simplify right side
275,406.24x = 58,747,928,213.20 - Step 5: Solve for x
x = 58,747,928,213.20/275,406.24 - Step 6: Final answer
x = 213,313.72
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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.