Finding the Fourth Proportional to 325,423.80, 488,135.70 and 115,034.40
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Solution
The fourth proportional to 325,423.80, 488,135.70 and 115,034.40 is: 172,551.60
Step by Step Solution
- Step 1: Write the proportion equation
325,423.80 : 488,135.70 = 115,034.40 : x - Step 2: Convert to fraction form
325,423.80/488,135.70 = 115,034.40/x - Step 3: Cross multiply
325,423.80x = 488,135.70 × 115,034.40 - Step 4: Simplify right side
325,423.80x = 56,152,397,368.08 - Step 5: Solve for x
x = 56,152,397,368.08/325,423.80 - Step 6: Final answer
x = 172,551.60
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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.