Finding the Fourth Proportional to 285,711.24, 394,301.34 and 158,398.68
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Solution
The fourth proportional to 285,711.24, 394,301.34 and 158,398.68 is: 218,601.17
Step by Step Solution
- Step 1: Write the proportion equation
285,711.24 : 394,301.34 = 158,398.68 : x - Step 2: Convert to fraction form
285,711.24/394,301.34 = 158,398.68/x - Step 3: Cross multiply
285,711.24x = 394,301.34 × 158,398.68 - Step 4: Simplify right side
285,711.24x = 62,456,811,778.23 - Step 5: Solve for x
x = 62,456,811,778.23/285,711.24 - Step 6: Final answer
x = 218,601.17
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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.