Finding the Fourth Proportional to 371.62, 557.36 and 198.64
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Solution
The fourth proportional to 371.62, 557.36 and 198.64 is: 297.92
Step by Step Solution
- Step 1: Write the proportion equation
371.62 : 557.36 = 198.64 : x - Step 2: Convert to fraction form
371.62/557.36 = 198.64/x - Step 3: Cross multiply
371.62x = 557.36 × 198.64 - Step 4: Simplify right side
371.62x = 110,713.99 - Step 5: Solve for x
x = 110,713.99/371.62 - Step 6: Final answer
x = 297.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.