Finding the Fourth Proportional to 639,186.63, 959,207.63 and 265,209.63
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Solution
The fourth proportional to 639,186.63, 959,207.63 and 265,209.63 is: 397,991.90
Step by Step Solution
- Step 1: Write the proportion equation
639,186.63 : 959,207.63 = 265,209.63 : x - Step 2: Convert to fraction form
639,186.63/959,207.63 = 265,209.63/x - Step 3: Cross multiply
639,186.63x = 959,207.63 × 265,209.63 - Step 4: Simplify right side
639,186.63x = 254,391,099,319.43 - Step 5: Solve for x
x = 254,391,099,319.43/639,186.63 - Step 6: Final answer
x = 397,991.90
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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.