Finding the Fourth Proportional to 324,442.44, 486,709.96 and 99,821.60
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Solution
The fourth proportional to 324,442.44, 486,709.96 and 99,821.60 is: 149,746.65
Step by Step Solution
- Step 1: Write the proportion equation
324,442.44 : 486,709.96 = 99,821.60 : x - Step 2: Convert to fraction form
324,442.44/486,709.96 = 99,821.60/x - Step 3: Cross multiply
324,442.44x = 486,709.96 × 99,821.60 - Step 4: Simplify right side
324,442.44x = 48,584,166,943.14 - Step 5: Solve for x
x = 48,584,166,943.14/324,442.44 - Step 6: Final answer
x = 149,746.65
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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.