Finding the Fourth Proportional to 356,107.05, 491,429.18 and 194,977.09
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Solution
The fourth proportional to 356,107.05, 491,429.18 and 194,977.09 is: 269,069.18
Step by Step Solution
- Step 1: Write the proportion equation
356,107.05 : 491,429.18 = 194,977.09 : x - Step 2: Convert to fraction form
356,107.05/491,429.18 = 194,977.09/x - Step 3: Cross multiply
356,107.05x = 491,429.18 × 194,977.09 - Step 4: Simplify right side
356,107.05x = 95,817,432,559.22 - Step 5: Solve for x
x = 95,817,432,559.22/356,107.05 - Step 6: Final answer
x = 269,069.18
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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.