Finding the Fourth Proportional to 455,849.78, 629,110.55 and 251,940.49
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Solution
The fourth proportional to 455,849.78, 629,110.55 and 251,940.49 is: 347,698.80
Step by Step Solution
- Step 1: Write the proportion equation
455,849.78 : 629,110.55 = 251,940.49 : x - Step 2: Convert to fraction form
455,849.78/629,110.55 = 251,940.49/x - Step 3: Cross multiply
455,849.78x = 629,110.55 × 251,940.49 - Step 4: Simplify right side
455,849.78x = 158,498,419,288.24 - Step 5: Solve for x
x = 158,498,419,288.24/455,849.78 - Step 6: Final answer
x = 347,698.80
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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.