Finding the Fourth Proportional to 201,825, 278,518.50 and 112,401
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Solution
The fourth proportional to 201,825, 278,518.50 and 112,401 is: 155,113.38
Step by Step Solution
- Step 1: Write the proportion equation
201,825 : 278,518.50 = 112,401 : x - Step 2: Convert to fraction form
201,825/278,518.50 = 112,401/x - Step 3: Cross multiply
201,825x = 278,518.50 × 112,401 - Step 4: Simplify right side
201,825x = 31,305,757,918.50 - Step 5: Solve for x
x = 31,305,757,918.50/201,825 - Step 6: Final answer
x = 155,113.38
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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.