Finding the Fourth Proportional to 238,399.14, 328,990.94 and 130,976.09
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Solution
The fourth proportional to 238,399.14, 328,990.94 and 130,976.09 is: 180,747.08
Step by Step Solution
- Step 1: Write the proportion equation
238,399.14 : 328,990.94 = 130,976.09 : x - Step 2: Convert to fraction form
238,399.14/328,990.94 = 130,976.09/x - Step 3: Cross multiply
238,399.14x = 328,990.94 × 130,976.09 - Step 4: Simplify right side
238,399.14x = 43,089,946,760.04 - Step 5: Solve for x
x = 43,089,946,760.04/238,399.14 - Step 6: Final answer
x = 180,747.08
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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.