Finding the Fourth Proportional to 215,893.41, 323,762.34 and 91,244.13
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Solution
The fourth proportional to 215,893.41, 323,762.34 and 91,244.13 is: 136,833.32
Step by Step Solution
- Step 1: Write the proportion equation
215,893.41 : 323,762.34 = 91,244.13 : x - Step 2: Convert to fraction form
215,893.41/323,762.34 = 91,244.13/x - Step 3: Cross multiply
215,893.41x = 323,762.34 × 91,244.13 - Step 4: Simplify right side
215,893.41x = 29,541,413,040.06 - Step 5: Solve for x
x = 29,541,413,040.06/215,893.41 - Step 6: Final answer
x = 136,833.32
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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.