Finding the Fourth Proportional to 239,310.87, 330,257.29 and 130,424.29
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Solution
The fourth proportional to 239,310.87, 330,257.29 and 130,424.29 is: 179,990.03
Step by Step Solution
- Step 1: Write the proportion equation
239,310.87 : 330,257.29 = 130,424.29 : x - Step 2: Convert to fraction form
239,310.87/330,257.29 = 130,424.29/x - Step 3: Cross multiply
239,310.87x = 330,257.29 × 130,424.29 - Step 4: Simplify right side
239,310.87x = 43,073,571,362.05 - Step 5: Solve for x
x = 43,073,571,362.05/239,310.87 - Step 6: Final answer
x = 179,990.03
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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.