Finding the Fourth Proportional to 291.28, 437 and 163.12
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Solution
The fourth proportional to 291.28, 437 and 163.12 is: 244.72
Step by Step Solution
- Step 1: Write the proportion equation
291.28 : 437 = 163.12 : x - Step 2: Convert to fraction form
291.28/437 = 163.12/x - Step 3: Cross multiply
291.28x = 437 × 163.12 - Step 4: Simplify right side
291.28x = 71,283.44 - Step 5: Solve for x
x = 71,283.44/291.28 - Step 6: Final answer
x = 244.72
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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.