Finding the Fourth Proportional to 449.70, 619.88 and 338.99
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Solution
The fourth proportional to 449.70, 619.88 and 338.99 is: 467.26
Step by Step Solution
- Step 1: Write the proportion equation
449.70 : 619.88 = 338.99 : x - Step 2: Convert to fraction form
449.70/619.88 = 338.99/x - Step 3: Cross multiply
449.70x = 619.88 × 338.99 - Step 4: Simplify right side
449.70x = 210,129.28 - Step 5: Solve for x
x = 210,129.28/449.70 - Step 6: Final answer
x = 467.26
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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.