Finding the Fourth Proportional to 342,578.97, 513,902.78 and 117,909.68
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Solution
The fourth proportional to 342,578.97, 513,902.78 and 117,909.68 is: 176,876.33
Step by Step Solution
- Step 1: Write the proportion equation
342,578.97 : 513,902.78 = 117,909.68 : x - Step 2: Convert to fraction form
342,578.97/513,902.78 = 117,909.68/x - Step 3: Cross multiply
342,578.97x = 513,902.78 × 117,909.68 - Step 4: Simplify right side
342,578.97x = 60,594,109,624.01 - Step 5: Solve for x
x = 60,594,109,624.01/342,578.97 - Step 6: Final answer
x = 176,876.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.