Finding the Fourth Proportional to 317,319.12, 476,445.24 and 130,695.12
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Solution
The fourth proportional to 317,319.12, 476,445.24 and 130,695.12 is: 196,234.84
Step by Step Solution
- Step 1: Write the proportion equation
317,319.12 : 476,445.24 = 130,695.12 : x - Step 2: Convert to fraction form
317,319.12/476,445.24 = 130,695.12/x - Step 3: Cross multiply
317,319.12x = 476,445.24 × 130,695.12 - Step 4: Simplify right side
317,319.12x = 62,269,067,815.23 - Step 5: Solve for x
x = 62,269,067,815.23/317,319.12 - Step 6: Final answer
x = 196,234.84
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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.