Finding the Fourth Proportional to 251,649.21, 377,729.88 and 109,557.99
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Solution
The fourth proportional to 251,649.21, 377,729.88 and 109,557.99 is: 164,448.47
Step by Step Solution
- Step 1: Write the proportion equation
251,649.21 : 377,729.88 = 109,557.99 : x - Step 2: Convert to fraction form
251,649.21/377,729.88 = 109,557.99/x - Step 3: Cross multiply
251,649.21x = 377,729.88 × 109,557.99 - Step 4: Simplify right side
251,649.21x = 41,383,326,415.74 - Step 5: Solve for x
x = 41,383,326,415.74/251,649.21 - Step 6: Final answer
x = 164,448.47
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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.