Finding the Fourth Proportional to 306,209.93, 422,583.77 and 170,257.85
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Solution
The fourth proportional to 306,209.93, 422,583.77 and 170,257.85 is: 234,963.65
Step by Step Solution
- Step 1: Write the proportion equation
306,209.93 : 422,583.77 = 170,257.85 : x - Step 2: Convert to fraction form
306,209.93/422,583.77 = 170,257.85/x - Step 3: Cross multiply
306,209.93x = 422,583.77 × 170,257.85 - Step 4: Simplify right side
306,209.93x = 71,948,204,125.09 - Step 5: Solve for x
x = 71,948,204,125.09/306,209.93 - Step 6: Final answer
x = 234,963.65
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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.