Finding the Fourth Proportional to 306,359.07, 422,745.90 and 177,271.80
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Solution
The fourth proportional to 306,359.07, 422,745.90 and 177,271.80 is: 244,617.95
Step by Step Solution
- Step 1: Write the proportion equation
306,359.07 : 422,745.90 = 177,271.80 : x - Step 2: Convert to fraction form
306,359.07/422,745.90 = 177,271.80/x - Step 3: Cross multiply
306,359.07x = 422,745.90 × 177,271.80 - Step 4: Simplify right side
306,359.07x = 74,940,926,635.62 - Step 5: Solve for x
x = 74,940,926,635.62/306,359.07 - Step 6: Final answer
x = 244,617.95
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1.5x scale
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.