Finding the Fourth Proportional to 325,908.20, 488,886.60 and 115,518.80
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Solution
The fourth proportional to 325,908.20, 488,886.60 and 115,518.80 is: 173,286.81
Step by Step Solution
- Step 1: Write the proportion equation
325,908.20 : 488,886.60 = 115,518.80 : x - Step 2: Convert to fraction form
325,908.20/488,886.60 = 115,518.80/x - Step 3: Cross multiply
325,908.20x = 488,886.60 × 115,518.80 - Step 4: Simplify right side
325,908.20x = 56,475,593,368.08 - Step 5: Solve for x
x = 56,475,593,368.08/325,908.20 - Step 6: Final answer
x = 173,286.81
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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.