Finding the Fourth Proportional to 230,231.94, 317,729.70 and 128,257.38
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Solution
The fourth proportional to 230,231.94, 317,729.70 and 128,257.38 is: 177,000.55
Step by Step Solution
- Step 1: Write the proportion equation
230,231.94 : 317,729.70 = 128,257.38 : x - Step 2: Convert to fraction form
230,231.94/317,729.70 = 128,257.38/x - Step 3: Cross multiply
230,231.94x = 317,729.70 × 128,257.38 - Step 4: Simplify right side
230,231.94x = 40,751,178,870.19 - Step 5: Solve for x
x = 40,751,178,870.19/230,231.94 - Step 6: Final answer
x = 177,000.55
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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.