Finding the Fourth Proportional to 455,853.75, 629,078.19 and 254,649.75
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Solution
The fourth proportional to 455,853.75, 629,078.19 and 254,649.75 is: 351,416.66
Step by Step Solution
- Step 1: Write the proportion equation
455,853.75 : 629,078.19 = 254,649.75 : x - Step 2: Convert to fraction form
455,853.75/629,078.19 = 254,649.75/x - Step 3: Cross multiply
455,853.75x = 629,078.19 × 254,649.75 - Step 4: Simplify right side
455,853.75x = 160,194,603,813.95 - Step 5: Solve for x
x = 160,194,603,813.95/455,853.75 - Step 6: Final answer
x = 351,416.66
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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.