Finding the Fourth Proportional to 442.13, 663.26 and 306.05
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Solution
The fourth proportional to 442.13, 663.26 and 306.05 is: 459.11
Step by Step Solution
- Step 1: Write the proportion equation
442.13 : 663.26 = 306.05 : x - Step 2: Convert to fraction form
442.13/663.26 = 306.05/x - Step 3: Cross multiply
442.13x = 663.26 × 306.05 - Step 4: Simplify right side
442.13x = 202,985.88 - Step 5: Solve for x
x = 202,985.88/442.13 - Step 6: Final answer
x = 459.11
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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.