Finding the Fourth Proportional to 287,093.92, 395,779.02 and 201,946.72
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Solution
The fourth proportional to 287,093.92, 395,779.02 and 201,946.72 is: 278,397.66
Step by Step Solution
- Step 1: Write the proportion equation
287,093.92 : 395,779.02 = 201,946.72 : x - Step 2: Convert to fraction form
287,093.92/395,779.02 = 201,946.72/x - Step 3: Cross multiply
287,093.92x = 395,779.02 × 201,946.72 - Step 4: Simplify right side
287,093.92x = 79,926,274,933.81 - Step 5: Solve for x
x = 79,926,274,933.81/287,093.92 - Step 6: Final answer
x = 278,397.66
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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.