Finding the Fourth Proportional to 325,857.12, 489,049.74 and 168,130.68
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Solution
The fourth proportional to 325,857.12, 489,049.74 and 168,130.68 is: 252,332.27
Step by Step Solution
- Step 1: Write the proportion equation
325,857.12 : 489,049.74 = 168,130.68 : x - Step 2: Convert to fraction form
325,857.12/489,049.74 = 168,130.68/x - Step 3: Cross multiply
325,857.12x = 489,049.74 × 168,130.68 - Step 4: Simplify right side
325,857.12x = 82,224,265,340.02 - Step 5: Solve for x
x = 82,224,265,340.02/325,857.12 - Step 6: Final answer
x = 252,332.27
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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.