Finding the Fourth Proportional to 207,947.18, 312,059.20 and 113,201.28
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Solution
The fourth proportional to 207,947.18, 312,059.20 and 113,201.28 is: 169,877.28
Step by Step Solution
- Step 1: Write the proportion equation
207,947.18 : 312,059.20 = 113,201.28 : x - Step 2: Convert to fraction form
207,947.18/312,059.20 = 113,201.28/x - Step 3: Cross multiply
207,947.18x = 312,059.20 × 113,201.28 - Step 4: Simplify right side
207,947.18x = 35,325,500,875.78 - Step 5: Solve for x
x = 35,325,500,875.78/207,947.18 - Step 6: Final answer
x = 169,877.28
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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.