Finding the Fourth Proportional to 325,853.12, 489,043.74 and 168,126.68
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Solution
The fourth proportional to 325,853.12, 489,043.74 and 168,126.68 is: 252,326.26
Step by Step Solution
- Step 1: Write the proportion equation
325,853.12 : 489,043.74 = 168,126.68 : x - Step 2: Convert to fraction form
325,853.12/489,043.74 = 168,126.68/x - Step 3: Cross multiply
325,853.12x = 489,043.74 × 168,126.68 - Step 4: Simplify right side
325,853.12x = 82,221,300,380.98 - Step 5: Solve for x
x = 82,221,300,380.98/325,853.12 - Step 6: Final answer
x = 252,326.26
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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.