Finding the Fourth Proportional to 392,302.14, 541,416.81 and 231,209.09
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Solution
The fourth proportional to 392,302.14, 541,416.81 and 231,209.09 is: 319,092.03
Step by Step Solution
- Step 1: Write the proportion equation
392,302.14 : 541,416.81 = 231,209.09 : x - Step 2: Convert to fraction form
392,302.14/541,416.81 = 231,209.09/x - Step 3: Cross multiply
392,302.14x = 541,416.81 × 231,209.09 - Step 4: Simplify right side
392,302.14x = 125,180,485,243.72 - Step 5: Solve for x
x = 125,180,485,243.72/392,302.14 - Step 6: Final answer
x = 319,092.03
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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.