Finding the Fourth Proportional to 371.99, 557.28 and 217.99
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Solution
The fourth proportional to 371.99, 557.28 and 217.99 is: 326.57
Step by Step Solution
- Step 1: Write the proportion equation
371.99 : 557.28 = 217.99 : x - Step 2: Convert to fraction form
371.99/557.28 = 217.99/x - Step 3: Cross multiply
371.99x = 557.28 × 217.99 - Step 4: Simplify right side
371.99x = 121,482.16 - Step 5: Solve for x
x = 121,482.16/371.99 - Step 6: Final answer
x = 326.57
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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.