Finding the Fourth Proportional to 449.12, 619.84 and 252.63
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Solution
The fourth proportional to 449.12, 619.84 and 252.63 is: 348.65
Step by Step Solution
- Step 1: Write the proportion equation
449.12 : 619.84 = 252.63 : x - Step 2: Convert to fraction form
449.12/619.84 = 252.63/x - Step 3: Cross multiply
449.12x = 619.84 × 252.63 - Step 4: Simplify right side
449.12x = 156,587.08 - Step 5: Solve for x
x = 156,587.08/449.12 - Step 6: Final answer
x = 348.65
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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.