Finding the Fourth Proportional to 239,172.84, 330,045.12 and 131,722.56
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Solution
The fourth proportional to 239,172.84, 330,045.12 and 131,722.56 is: 181,769.75
Step by Step Solution
- Step 1: Write the proportion equation
239,172.84 : 330,045.12 = 131,722.56 : x - Step 2: Convert to fraction form
239,172.84/330,045.12 = 131,722.56/x - Step 3: Cross multiply
239,172.84x = 330,045.12 × 131,722.56 - Step 4: Simplify right side
239,172.84x = 43,474,388,121.91 - Step 5: Solve for x
x = 43,474,388,121.91/239,172.84 - Step 6: Final answer
x = 181,769.75
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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.