Finding the Fourth Proportional to 324,278.19, 486,418.73 and 99,636.75
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Solution
The fourth proportional to 324,278.19, 486,418.73 and 99,636.75 is: 149,455.57
Step by Step Solution
- Step 1: Write the proportion equation
324,278.19 : 486,418.73 = 99,636.75 : x - Step 2: Convert to fraction form
324,278.19/486,418.73 = 99,636.75/x - Step 3: Cross multiply
324,278.19x = 486,418.73 × 99,636.75 - Step 4: Simplify right side
324,278.19x = 48,465,180,898.14 - Step 5: Solve for x
x = 48,465,180,898.14/324,278.19 - Step 6: Final answer
x = 149,455.57
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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.