Finding the Fourth Proportional to 194,479.12, 268,431.12 and 126,665.08
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Solution
The fourth proportional to 194,479.12, 268,431.12 and 126,665.08 is: 174,830.33
Step by Step Solution
- Step 1: Write the proportion equation
194,479.12 : 268,431.12 = 126,665.08 : x - Step 2: Convert to fraction form
194,479.12/268,431.12 = 126,665.08/x - Step 3: Cross multiply
194,479.12x = 268,431.12 × 126,665.08 - Step 4: Simplify right side
194,479.12x = 34,000,849,289.29 - Step 5: Solve for x
x = 34,000,849,289.29/194,479.12 - Step 6: Final answer
x = 174,830.33
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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.