Finding the Fourth Proportional to 171,921.28, 258,277.28 and 122,122.56
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Solution
The fourth proportional to 171,921.28, 258,277.28 and 122,122.56 is: 183,464.68
Step by Step Solution
- Step 1: Write the proportion equation
171,921.28 : 258,277.28 = 122,122.56 : x - Step 2: Convert to fraction form
171,921.28/258,277.28 = 122,122.56/x - Step 3: Cross multiply
171,921.28x = 258,277.28 × 122,122.56 - Step 4: Simplify right side
171,921.28x = 31,541,482,623.44 - Step 5: Solve for x
x = 31,541,482,623.44/171,921.28 - Step 6: Final answer
x = 183,464.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.