Finding the Fourth Proportional to 371.21, 556.90 and 197.99
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Solution
The fourth proportional to 371.21, 556.90 and 197.99 is: 297.03
Step by Step Solution
- Step 1: Write the proportion equation
371.21 : 556.90 = 197.99 : x - Step 2: Convert to fraction form
371.21/556.90 = 197.99/x - Step 3: Cross multiply
371.21x = 556.90 × 197.99 - Step 4: Simplify right side
371.21x = 110,260.63 - Step 5: Solve for x
x = 110,260.63/371.21 - Step 6: Final answer
x = 297.03
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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.