Finding the Fourth Proportional to 321,909.62, 444,214.41 and 178,669.70
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Solution
The fourth proportional to 321,909.62, 444,214.41 and 178,669.70 is: 246,552.60
Step by Step Solution
- Step 1: Write the proportion equation
321,909.62 : 444,214.41 = 178,669.70 : x - Step 2: Convert to fraction form
321,909.62/444,214.41 = 178,669.70/x - Step 3: Cross multiply
321,909.62x = 444,214.41 × 178,669.70 - Step 4: Simplify right side
321,909.62x = 79,367,655,370.38 - Step 5: Solve for x
x = 79,367,655,370.38/321,909.62 - Step 6: Final answer
x = 246,552.60
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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.