Finding the Fourth Proportional to 225,432.07, 311,120.60 and 143,762.99
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Solution
The fourth proportional to 225,432.07, 311,120.60 and 143,762.99 is: 198,408.44
Step by Step Solution
- Step 1: Write the proportion equation
225,432.07 : 311,120.60 = 143,762.99 : x - Step 2: Convert to fraction form
225,432.07/311,120.60 = 143,762.99/x - Step 3: Cross multiply
225,432.07x = 311,120.60 × 143,762.99 - Step 4: Simplify right side
225,432.07x = 44,727,625,432.18 - Step 5: Solve for x
x = 44,727,625,432.18/225,432.07 - Step 6: Final answer
x = 198,408.44
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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.