Finding the Fourth Proportional to 397.19, 596.79 and 380.99
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Solution
The fourth proportional to 397.19, 596.79 and 380.99 is: 572.45
Step by Step Solution
- Step 1: Write the proportion equation
397.19 : 596.79 = 380.99 : x - Step 2: Convert to fraction form
397.19/596.79 = 380.99/x - Step 3: Cross multiply
397.19x = 596.79 × 380.99 - Step 4: Simplify right side
397.19x = 227,368.04 - Step 5: Solve for x
x = 227,368.04/397.19 - Step 6: Final answer
x = 572.45
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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.