Finding the Fourth Proportional to 397.14, 547.96 and 303.99
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Solution
The fourth proportional to 397.14, 547.96 and 303.99 is: 419.44
Step by Step Solution
- Step 1: Write the proportion equation
397.14 : 547.96 = 303.99 : x - Step 2: Convert to fraction form
397.14/547.96 = 303.99/x - Step 3: Cross multiply
397.14x = 547.96 × 303.99 - Step 4: Simplify right side
397.14x = 166,576.11 - Step 5: Solve for x
x = 166,576.11/397.14 - Step 6: Final answer
x = 419.44
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.