Finding the Fourth Proportional to 280,441.41, 420,750.63 and 213,295.09
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Solution
The fourth proportional to 280,441.41, 420,750.63 and 213,295.09 is: 320,009.95
Step by Step Solution
- Step 1: Write the proportion equation
280,441.41 : 420,750.63 = 213,295.09 : x - Step 2: Convert to fraction form
280,441.41/420,750.63 = 213,295.09/x - Step 3: Cross multiply
280,441.41x = 420,750.63 × 213,295.09 - Step 4: Simplify right side
280,441.41x = 89,744,040,323.18 - Step 5: Solve for x
x = 89,744,040,323.18/280,441.41 - Step 6: Final answer
x = 320,009.95
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1.5x scale
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.