Finding the Fourth Proportional to 275,889.65, 413,768.87 and 76,205.62
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Solution
The fourth proportional to 275,889.65, 413,768.87 and 76,205.62 is: 114,290.31
Step by Step Solution
- Step 1: Write the proportion equation
275,889.65 : 413,768.87 = 76,205.62 : x - Step 2: Convert to fraction form
275,889.65/413,768.87 = 76,205.62/x - Step 3: Cross multiply
275,889.65x = 413,768.87 × 76,205.62 - Step 4: Simplify right side
275,889.65x = 31,531,513,275.05 - Step 5: Solve for x
x = 31,531,513,275.05/275,889.65 - Step 6: Final answer
x = 114,290.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.