Finding the Fourth Proportional to 255,028.53, 382,378.77 and 121,905.84
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Solution
The fourth proportional to 255,028.53, 382,378.77 and 121,905.84 is: 182,780.35
Step by Step Solution
- Step 1: Write the proportion equation
255,028.53 : 382,378.77 = 121,905.84 : x - Step 2: Convert to fraction form
255,028.53/382,378.77 = 121,905.84/x - Step 3: Cross multiply
255,028.53x = 382,378.77 × 121,905.84 - Step 4: Simplify right side
255,028.53x = 46,614,205,155.02 - Step 5: Solve for x
x = 46,614,205,155.02/255,028.53 - Step 6: Final answer
x = 182,780.35
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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.