Finding the Fourth Proportional to 284,785.08, 427,162.82 and 85,107.08
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Solution
The fourth proportional to 284,785.08, 427,162.82 and 85,107.08 is: 127,656.20
Step by Step Solution
- Step 1: Write the proportion equation
284,785.08 : 427,162.82 = 85,107.08 : x - Step 2: Convert to fraction form
284,785.08/427,162.82 = 85,107.08/x - Step 3: Cross multiply
284,785.08x = 427,162.82 × 85,107.08 - Step 4: Simplify right side
284,785.08x = 36,354,580,294.77 - Step 5: Solve for x
x = 36,354,580,294.77/284,785.08 - Step 6: Final answer
x = 127,656.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.