Finding the Fourth Proportional to 389,122.09, 536,896.92 and 236,156.83
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Solution
The fourth proportional to 389,122.09, 536,896.92 and 236,156.83 is: 325,840.86
Step by Step Solution
- Step 1: Write the proportion equation
389,122.09 : 536,896.92 = 236,156.83 : x - Step 2: Convert to fraction form
389,122.09/536,896.92 = 236,156.83/x - Step 3: Cross multiply
389,122.09x = 536,896.92 × 236,156.83 - Step 4: Simplify right side
389,122.09x = 126,791,874,207.31 - Step 5: Solve for x
x = 126,791,874,207.31/389,122.09 - Step 6: Final answer
x = 325,840.86
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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.