Finding the Fourth Proportional to 285,582.36, 394,098.94 and 156,519.84
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Solution
The fourth proportional to 285,582.36, 394,098.94 and 156,519.84 is: 215,994.79
Step by Step Solution
- Step 1: Write the proportion equation
285,582.36 : 394,098.94 = 156,519.84 : x - Step 2: Convert to fraction form
285,582.36/394,098.94 = 156,519.84/x - Step 3: Cross multiply
285,582.36x = 394,098.94 × 156,519.84 - Step 4: Simplify right side
285,582.36x = 61,684,303,032.97 - Step 5: Solve for x
x = 61,684,303,032.97/285,582.36 - Step 6: Final answer
x = 215,994.79
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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.