Finding the Fourth Proportional to 285,545.62, 394,031.28 and 158,218.48
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Solution
The fourth proportional to 285,545.62, 394,031.28 and 158,218.48 is: 218,329.49
Step by Step Solution
- Step 1: Write the proportion equation
285,545.62 : 394,031.28 = 158,218.48 : x - Step 2: Convert to fraction form
285,545.62/394,031.28 = 158,218.48/x - Step 3: Cross multiply
285,545.62x = 394,031.28 × 158,218.48 - Step 4: Simplify right side
285,545.62x = 62,343,030,194.05 - Step 5: Solve for x
x = 62,343,030,194.05/285,545.62 - Step 6: Final answer
x = 218,329.49
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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.