Finding the Fourth Proportional to 422,986.20, 634,331.73 and 170,201.19
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Solution
The fourth proportional to 422,986.20, 634,331.73 and 170,201.19 is: 255,242.41
Step by Step Solution
- Step 1: Write the proportion equation
422,986.20 : 634,331.73 = 170,201.19 : x - Step 2: Convert to fraction form
422,986.20/634,331.73 = 170,201.19/x - Step 3: Cross multiply
422,986.20x = 634,331.73 × 170,201.19 - Step 4: Simplify right side
422,986.20x = 107,964,015,300.76 - Step 5: Solve for x
x = 107,964,015,300.76/422,986.20 - Step 6: Final answer
x = 255,242.41
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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.