Finding the Fourth Proportional to 423.87, 635.80 and 163.99
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Solution
The fourth proportional to 423.87, 635.80 and 163.99 is: 245.98
Step by Step Solution
- Step 1: Write the proportion equation
423.87 : 635.80 = 163.99 : x - Step 2: Convert to fraction form
423.87/635.80 = 163.99/x - Step 3: Cross multiply
423.87x = 635.80 × 163.99 - Step 4: Simplify right side
423.87x = 104,264.84 - Step 5: Solve for x
x = 104,264.84/423.87 - Step 6: Final answer
x = 245.98
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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.