Finding the Fourth Proportional to 626.42, 939.84 and 279.99
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Solution
The fourth proportional to 626.42, 939.84 and 279.99 is: 420.08
Step by Step Solution
- Step 1: Write the proportion equation
626.42 : 939.84 = 279.99 : x - Step 2: Convert to fraction form
626.42/939.84 = 279.99/x - Step 3: Cross multiply
626.42x = 939.84 × 279.99 - Step 4: Simplify right side
626.42x = 263,144.63 - Step 5: Solve for x
x = 263,144.63/626.42 - Step 6: Final answer
x = 420.08
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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.