Finding the Fourth Proportional to 342,618.98, 513,786.99 and 129,350.60
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Solution
The fourth proportional to 342,618.98, 513,786.99 and 129,350.60 is: 193,972.48
Step by Step Solution
- Step 1: Write the proportion equation
342,618.98 : 513,786.99 = 129,350.60 : x - Step 2: Convert to fraction form
342,618.98/513,786.99 = 129,350.60/x - Step 3: Cross multiply
342,618.98x = 513,786.99 × 129,350.60 - Step 4: Simplify right side
342,618.98x = 66,458,652,859.76 - Step 5: Solve for x
x = 66,458,652,859.76/342,618.98 - Step 6: Final answer
x = 193,972.48
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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.