Finding the Fourth Proportional to 355,670.36, 490,806.90 and 194,494.08
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Solution
The fourth proportional to 355,670.36, 490,806.90 and 194,494.08 is: 268,391.88
Step by Step Solution
- Step 1: Write the proportion equation
355,670.36 : 490,806.90 = 194,494.08 : x - Step 2: Convert to fraction form
355,670.36/490,806.90 = 194,494.08/x - Step 3: Cross multiply
355,670.36x = 490,806.90 × 194,494.08 - Step 4: Simplify right side
355,670.36x = 95,459,036,473.15 - Step 5: Solve for x
x = 95,459,036,473.15/355,670.36 - Step 6: Final answer
x = 268,391.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.