Finding the Fourth Proportional to 287,884.08, 397,440.64 and 202,106.32
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Solution
The fourth proportional to 287,884.08, 397,440.64 and 202,106.32 is: 279,019.48
Step by Step Solution
- Step 1: Write the proportion equation
287,884.08 : 397,440.64 = 202,106.32 : x - Step 2: Convert to fraction form
287,884.08/397,440.64 = 202,106.32/x - Step 3: Cross multiply
287,884.08x = 397,440.64 × 202,106.32 - Step 4: Simplify right side
287,884.08x = 80,325,265,168.84 - Step 5: Solve for x
x = 80,325,265,168.84/287,884.08 - Step 6: Final answer
x = 279,019.48
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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.