Finding the Fourth Proportional to 268,668.16, 402,778.68 and 126,442.69
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Solution
The fourth proportional to 268,668.16, 402,778.68 and 126,442.69 is: 189,558.82
Step by Step Solution
- Step 1: Write the proportion equation
268,668.16 : 402,778.68 = 126,442.69 : x - Step 2: Convert to fraction form
268,668.16/402,778.68 = 126,442.69/x - Step 3: Cross multiply
268,668.16x = 402,778.68 × 126,442.69 - Step 4: Simplify right side
268,668.16x = 50,928,419,773.85 - Step 5: Solve for x
x = 50,928,419,773.85/268,668.16 - Step 6: Final answer
x = 189,558.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.