Finding the Fourth Proportional to 239,314.70, 330,261.21 and 131,891.65
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Solution
The fourth proportional to 239,314.70, 330,261.21 and 131,891.65 is: 182,014.29
Step by Step Solution
- Step 1: Write the proportion equation
239,314.70 : 330,261.21 = 131,891.65 : x - Step 2: Convert to fraction form
239,314.70/330,261.21 = 131,891.65/x - Step 3: Cross multiply
239,314.70x = 330,261.21 × 131,891.65 - Step 4: Simplify right side
239,314.70x = 43,558,695,836.13 - Step 5: Solve for x
x = 43,558,695,836.13/239,314.70 - Step 6: Final answer
x = 182,014.29
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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.