Finding the Fourth Proportional to 395,354.93, 545,366.97 and 250,115.63
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Solution
The fourth proportional to 395,354.93, 545,366.97 and 250,115.63 is: 345,018.59
Step by Step Solution
- Step 1: Write the proportion equation
395,354.93 : 545,366.97 = 250,115.63 : x - Step 2: Convert to fraction form
395,354.93/545,366.97 = 250,115.63/x - Step 3: Cross multiply
395,354.93x = 545,366.97 × 250,115.63 - Step 4: Simplify right side
395,354.93x = 136,404,800,555.91 - Step 5: Solve for x
x = 136,404,800,555.91/395,354.93 - Step 6: Final answer
x = 345,018.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.