Finding the Fourth Proportional to 247,759.72, 341,958.18 and 147,138.28
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Solution
The fourth proportional to 247,759.72, 341,958.18 and 147,138.28 is: 203,080.38
Step by Step Solution
- Step 1: Write the proportion equation
247,759.72 : 341,958.18 = 147,138.28 : x - Step 2: Convert to fraction form
247,759.72/341,958.18 = 147,138.28/x - Step 3: Cross multiply
247,759.72x = 341,958.18 × 147,138.28 - Step 4: Simplify right side
247,759.72x = 50,315,138,437.13 - Step 5: Solve for x
x = 50,315,138,437.13/247,759.72 - Step 6: Final answer
x = 203,080.38
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1.5x scale
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.