Finding the Fourth Proportional to 392,646.26, 541,837.08 and 239,939.80
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Solution
The fourth proportional to 392,646.26, 541,837.08 and 239,939.80 is: 331,107.91
Step by Step Solution
- Step 1: Write the proportion equation
392,646.26 : 541,837.08 = 239,939.80 : x - Step 2: Convert to fraction form
392,646.26/541,837.08 = 239,939.80/x - Step 3: Cross multiply
392,646.26x = 541,837.08 × 239,939.80 - Step 4: Simplify right side
392,646.26x = 130,008,280,607.78 - Step 5: Solve for x
x = 130,008,280,607.78/392,646.26 - Step 6: Final answer
x = 331,107.91
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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.