Finding the Fourth Proportional to 371.79, 557.99 and 217.84
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Solution
The fourth proportional to 371.79, 557.99 and 217.84 is: 326.94
Step by Step Solution
- Step 1: Write the proportion equation
371.79 : 557.99 = 217.84 : x - Step 2: Convert to fraction form
371.79/557.99 = 217.84/x - Step 3: Cross multiply
371.79x = 557.99 × 217.84 - Step 4: Simplify right side
371.79x = 121,551.92 - Step 5: Solve for x
x = 121,551.92/371.79 - Step 6: Final answer
x = 326.94
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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.