Finding the Fourth Proportional to 258,107.80, 356,177.19 and 143,394.49
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Solution
The fourth proportional to 258,107.80, 356,177.19 and 143,394.49 is: 197,877.97
Step by Step Solution
- Step 1: Write the proportion equation
258,107.80 : 356,177.19 = 143,394.49 : x - Step 2: Convert to fraction form
258,107.80/356,177.19 = 143,394.49/x - Step 3: Cross multiply
258,107.80x = 356,177.19 × 143,394.49 - Step 4: Simplify right side
258,107.80x = 51,073,846,509.68 - Step 5: Solve for x
x = 51,073,846,509.68/258,107.80 - Step 6: Final answer
x = 197,877.97
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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.