Finding the Fourth Proportional to 287,079.95, 395,759.73 and 201,932.75
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Solution
The fourth proportional to 287,079.95, 395,759.73 and 201,932.75 is: 278,378.38
Step by Step Solution
- Step 1: Write the proportion equation
287,079.95 : 395,759.73 = 201,932.75 : x - Step 2: Convert to fraction form
287,079.95/395,759.73 = 201,932.75/x - Step 3: Cross multiply
287,079.95x = 395,759.73 × 201,932.75 - Step 4: Simplify right side
287,079.95x = 79,916,850,618.16 - Step 5: Solve for x
x = 79,916,850,618.16/287,079.95 - Step 6: Final answer
x = 278,378.38
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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.