Finding the Fourth Proportional to 355,963.96, 491,205.59 and 203,008.62
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Solution
The fourth proportional to 355,963.96, 491,205.59 and 203,008.62 is: 280,137.82
Step by Step Solution
- Step 1: Write the proportion equation
355,963.96 : 491,205.59 = 203,008.62 : x - Step 2: Convert to fraction form
355,963.96/491,205.59 = 203,008.62/x - Step 3: Cross multiply
355,963.96x = 491,205.59 × 203,008.62 - Step 4: Simplify right side
355,963.96x = 99,718,967,947.14 - Step 5: Solve for x
x = 99,718,967,947.14/355,963.96 - Step 6: Final answer
x = 280,137.82
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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.